Somehow weird that a « looking positive » thing turns to be negative to the power of 3

@edwardpacman7082

2 ай бұрын

Think about (1+2i)*i and (1+2i)*i*i. Rotation is happening each time you mulply a complex number with none-zero imaginary part.

Or if you prefer... 5sqrt(5)e^(3i atan2)

this is pretty complex. Pun intended.

Sir please make a video on how to find intersection coordinates of two circles.

Can you evaluate (1+sqrt(2)i)^3

I think i am first viewer to watch you video

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Now solve it using radians.

x = 1+2i = √5e^(i*arctan(2)) x³ = 5^(3/2) * e^(3i*arctan(2)) certainly not as clean

@itsphoenixingtime

3 ай бұрын

You can expand the exponential form out and then simplify. Cos(arctan x) and sin(arctan x) should give you some closed form expressions that can then be evaluated further

@lumina_

3 ай бұрын

​@@itsphoenixingtimetrue

What?