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• 
  @AbdulRehman-zf2mxКүн бұрын

  Keep it up

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  @AbdulRehman-zf2mxКүн бұрын

  That good knowledge for beginners to understand the basics Good effort

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  @BZKnowHow19 сағат бұрын

  i am glad you like it.

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  @VictoriaBiwott-l7oКүн бұрын

  ❤❤❤❤

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  @BZKnowHowКүн бұрын

  i am glad that you like my work

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  @Vishenru2 күн бұрын

  Nice clickbate

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  @BZKnowHow2 күн бұрын

  thanks

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  @patricknormand12262 күн бұрын

  Hello ! Please at 10''00' : -2a=1 (not -2a=a)

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  @BZKnowHow2 күн бұрын

  oh i appologize that was a typing mistake for sure. Thankyou for correcting me.

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  @user-ow8hm3in2e3 күн бұрын

  ❤

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  @BZKnowHow2 күн бұрын

  thankyou

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  @hangthuy4584 күн бұрын

  5^7=125^8x 5^7=5^3×8x 5^7=5^24x 24x=7 X=7/24

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  @BZKnowHow2 күн бұрын

  nice approach

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  @timpani1124 күн бұрын

  Overall, the solution presented gets many things right, but it contains some clear flaws that one should be aware of. If one would judge your solution on a scale from 0-10, where 10 is entirely correct and 0 is entirely wrong I reckon that your solution deserves around 3 points. Probably not below 3, maybe 4 but definitely not 5 or above. We can begin by briefly mentioning the solution to the quadratic equation established at around the 3:30 mark in the video. The solution method is completely fine, although its execution is a bit lacking here; I'm mainly talking about the error at the 3:36 mark, where you write down the erroneous statement "-2+8=10", but using some arrows. Instead of writing "-2+8" as you did, you have to write either "-2-8" or "-(2+8)", since -2+8 is equal to 6 and nothing else; I want to be very explicit on this point in particular, as I see way too many students having similar confusion when handling minus signs. This is very important: if you want to break up the term -10y into separate terms, you can't abuse notation by writing -2y+8y, as this unambiguously means something that is different from what you're trying to convey. So learn to use parentheses properly, because this kind of error is not something that any competent mathematician wouldn't notice and remark upon. Another mistake comes up at around 7:30 in the video, where roots are cancelled after which one side suddenly has a plus/minus sign before it. While all the lines that have been written down here are individually correct on their own, the kind of reasoning they make up is flawed. The square root of a number is ALWAYS the positive one (or zero if we take the root of zero) if we work on the real number line, it's never anything else. So the implicit reasoning you use in this sequence is unclear. Why not just skip the root signs altoghether? They really add nothing of value except potential confusion. If you insist on having root signs, you could write "sin x=plus/minus root of (1/4)" instead. That way, there's absolutely no confusion as to what you're actually doing to arrive at your conclusion. This kind of expositional mistake is very common among students, and all it comes down to is practicing actually conveying mathematical reasoning in text form. This is something that hurts the quality of the video in general, and a very easy fix is to actually have some text in plain English that explains what reasoning is being used between steps. Students are for some reason very reluctant to do this, but it can serve to improve the overall quality and readability of a solution many times over. At around 8:00 in the video we come to a point which I personally dislike, and that is the use of the dreadful "sin^-1" notation for the inverse sine function. Since we often write "sin^k x" to denote (sin x)^k for any number k, the notation "sin^(-1)x" becomes ambiguous, as it's not always clear whether we're referring to the actual inverse sine function, or if we're referring to the reciprocal of sin x. This is somewhat mitigated in some countries where the secant and cosecant functions are widely used to denote the reciprocals of cosine and sine, respectively, but it's far better in my opinion to just use the notation "arcsin(x)" to avoid any confusion. Besides this, the line "x=sin^(-1)(plus/minus 0.5)" is actually incorrect, and this is something that has already been pointed out before in this comment section. This is because the inverse trigonometric functions (including arcsin) are functions, meaning that they will only have one output value for every valid input value. The equation "sin x= A", on the other hand, has an infinite amount of solutions, due to periodicity (and then there's the symmetry of the unit circle to take into account). So, writing sin x=A x=arcsin(A) is just wrong no matter what A is, unless the specified range for x is a subset of the interval [-pi/2,pi/2] (or [-90 degrees, 90 degrees] if we use degrees instead of radians). So, how should you actually write these lines down to get something that is correct? The answer is actually the same as in the previous paragraph: use plain English! It doesn't have to be much, but it can make the difference between clear and completely incomprehensible: "sin x=A. Thus, due to periodicity and symmetries in the unit circle, one gets that x= arcsin A+(n*360 degrees), OR x=180 degrees - arcsin A+(n*360 degrees)." Besides the use of plain English to convey my reasoning, note in particular the fact that we get two distinct cases. You didn't include the second case, which is why you didn't find all solutions to the equation. The final error I will remark upon is the one that occurs at around 10:30. I have yet to fully understand why this one happens at all, but it's something that I've observed briefly among students that are not used to university level mathematics. You write that sin x=plus/minus 0.866. This is wrong. Plain and simple. There is no reason whatsoever to replace the root of 3 divided by 2 with a decimal approximation; it does nothing to help the solution become more transparent, it's not correct, and no mathematician would ever recommend that you do it. Yet people do this kind of thing all the time, and I really don't get it. We tend to manage to bash out this kind of thinking from our first-year students at uni pretty quickly, but I'm not sure where the general idea comes from. It really makes no sense, and if there is one thing you should just stop doing, this is it. Use exact values throughout the entire solution, and if you want to give a decimal approximation you do that at the end when all relevant calculations that need the exact values are done. You should not take this comment as a complete roast of your work - as I wrote in the beginning, your solution gets many things right, including the key ideas to solving the problem. But rather, you should take this comment as a reminder that you still have a lot of room for improvement.

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  @BZKnowHow3 күн бұрын

  I appreciate your passion abut learning things so deeply.

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  @hydra62614 күн бұрын

  Fun Fact: 64 - 25 = 39

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  @BZKnowHow3 күн бұрын

  nice one

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  @nikitaluzhbin89824 күн бұрын

  in squre equasina -b = x1+x2 c = x1*x2. obvious x1, x2 = 2, 8 en.wikipedia.org/wiki/Vieta%27s_formulas

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  @AnshYadav-zw6dd4 күн бұрын

  Hi bro do u play pubg

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  @BZKnowHow3 күн бұрын

  no

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  @AnshYadav-zw6dd3 күн бұрын

  @@BZKnowHow I'm from india

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  @hydra62615 күн бұрын

  sin = +- 1/2, then all the four values: 30, 150, 210 (-150) and 300 (-30) would work, not just +-30

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  @BZKnowHow5 күн бұрын

  nice

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  @srinivaschillara40235 күн бұрын

  Nice! Thanks. After the discovery of x=30 (first root); I could guess the other would be 60, since by symmetry the same logic would lead to cosx=1/2 hence x could also be 60.

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  @BZKnowHow5 күн бұрын

  Excellent!

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  @kurbads746 күн бұрын

  -2+8=10

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  @BZKnowHow6 күн бұрын

  thats a simple equation that you are reffering but in this perticular problem you have to incorporate sin & Cos method to solve this. Please have a look

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  @timpani1124 күн бұрын

  @@BZKnowHow I think the commenter is remarking on the fact that the statement is obviously wrong, and that it's something that you write in your solution. It should be -2-8=-10 at around the 3:43 timestamp, and this is indeed what you're using to find the solution to the quadratic.

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  @jiangchuYT6 күн бұрын

  Writing 30 or 60 without the degree symbol is just not right. Also, what is the range of x? If x can be any real number, the correct answer for x should be n\pi+\pi/6, n\pi+pi/3, n\pi+2\pi/3,n\pi+5\pi/6 for any integer n.

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  @josepherhardt1646 күн бұрын

  Before even looking, I smell a hidden quadratic. At least the ever-more-ubiquitous Lambert W function is nowhere to be seen! :)

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  @BZKnowHow6 күн бұрын

  I am glad you watched it. i can bring more Lambert W Function related problems if you are interested.

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  @lider-20116 күн бұрын

  x√a ; x∈N ; 11/20∉N : Ø no roots x can only be a natural number

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  @BZKnowHow6 күн бұрын

  you are right

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  @zohrabilal36547 күн бұрын

  very good

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  @BZKnowHow6 күн бұрын

  Thank you! Cheers!

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  @nikolayguzman3318 күн бұрын

  More faster: 2^(11/4) = 2^5x 11/4=5x x=11/20

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  @BZKnowHow7 күн бұрын

  nice approach

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  @midnighthaunts8 күн бұрын

  very well explained

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  @BZKnowHow7 күн бұрын

  Thanks for liking

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  @midnighthaunts9 күн бұрын

  very well explained

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  @BZKnowHow8 күн бұрын

  Keep watching

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  @Adamant4569 күн бұрын

  X=18 y=1 took me 2 minutes to think it lmao

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  @BZKnowHow8 күн бұрын

  i am glad you did it

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  @user-po1qy4by1l9 күн бұрын

  mistake on 3:05

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  @BZKnowHow8 күн бұрын

  sorry it was a typing mistake i will correct it. Thank you for notifying me sir

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  @user-ow8hm3in2e11 күн бұрын

  Gud work

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  @AbdulRehman-zf2mx12 күн бұрын

  That's required a lot of effort and you are doing a great job for students

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  @BZKnowHow11 күн бұрын

  Thank you sir

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  @midnighthaunts13 күн бұрын

  hello can you please explain more problems like these.

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  @BZKnowHow11 күн бұрын

  Sure Sir i will bring more informative content for you

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  @user-ow8hm3in2e13 күн бұрын

  Gud maths

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  @BZKnowHow11 күн бұрын

  Thank you sir

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  @IbramAli-jq3oy13 күн бұрын

  Nice maths teacher

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  @BZKnowHow11 күн бұрын

  Thank you sir

• 
  @AbuBakar-pt7on13 күн бұрын

  👍

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  @BZKnowHow11 күн бұрын

  Thank you sir

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  @AbuBakar-pt7on13 күн бұрын

  Nice

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  @BZKnowHow11 күн бұрын

  So nice

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  @user-ow8hm3in2e13 күн бұрын

  Nice

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  @BZKnowHow11 күн бұрын

  Thanks

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  @healthynutrify14 күн бұрын

  please mention formulas side by side it helps to understand every step

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  @BZKnowHow11 күн бұрын

  i always mention formulas on side for your understanding

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  @dietitionBusinessquerries14 күн бұрын

  can you please do a algebra qustion also i like them more

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  @BZKnowHow11 күн бұрын

  sure iwill

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  @midnighthaunts14 күн бұрын

  your way of explaning all things s very good

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  @BZKnowHow11 күн бұрын

  It's my pleasure

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  @user-ow8hm3in2e14 күн бұрын

  Nice video

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  @BZKnowHow11 күн бұрын

  i am glad that you liked it

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  @user-ow8hm3in2e14 күн бұрын

  V gud

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  @user-ow8hm3in2e15 күн бұрын

  Good video

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  @BZKnowHow11 күн бұрын

  Thanks for the visit

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  @zohrabilal365415 күн бұрын

  You always come up with very amazing solutions

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  @BZKnowHow11 күн бұрын

  thank you mam for appreciation

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  @iqramehar251115 күн бұрын

  Hey please do voice over instead of 🎵 music please

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  @BZKnowHow11 күн бұрын

  sure i will work on it.

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  @iqramehar251115 күн бұрын

  Assalamualaikum good work but music is so loud and irritating

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  @BZKnowHow11 күн бұрын

  walaikum aslam mam i will reduce the volume sorry for trouble

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  @zohrabilal365415 күн бұрын

  This was a veri interesting problem....looking forward to learn more

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  @zohrabilal365415 күн бұрын

  Very well explained you mention each & every step

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  @factsvslogics18 күн бұрын

  6:24 Where did 5 came From 🤔

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  @BZKnowHow17 күн бұрын

  Answer: we have a formula of log Log a/ log b = log a to the base b

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  @factsvslogics18 күн бұрын

  5:51 You have made a mistake a^m.n ≠ a^m+n

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  @BZKnowHow17 күн бұрын

  sorry dear it was a typing mistake I apologize. Correct formula is a^m+n = (a^m)(a^n)

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  @factsvslogics18 күн бұрын

  Where did log(5) base 3 came from? 🤔

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  @BZKnowHow17 күн бұрын

  3^2+log5 base 3 Can be rewritten as (3^2)(3^log5 base3) Now we have a logarithmic formula if a^log(b) base(a) =b So 3^log5 base3=5

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  @factsvslogics17 күн бұрын

  Kamal he... 😂