Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$4(cos\frac{2\pi}{3}+i\ sin\frac{2\pi}{3})$$

Evaluate

$-2+2\sqrt{3}i\approx -2+3.464101615i$

Real Part

$-2$

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