Practice problem
Solve: 2 cis(π3)⋅3 cis(2π3)2 \text{ cis}\big(\frac{\pi}{3}\big) \cdot 3 \text{ cis}\big(\frac{2\pi}{3}\big)2 cis(3π)⋅3 cis(32π) (Note: cis(x)=cos(x)+isin(x)\text{cis}(x) = \cos(x) + i \sin(x)cis(x)=cos(x)+isin(x).)
−6-6−6
−5-5−5
−4-4−4
−3-3−3
Type a concept, like “slope” or “photosynthesis”.
