Practice problem
Find the value of: 3(cosπ+isinπ)⋅cosπ+isinπ33(\cos \pi+i\sin\pi)\cdot\frac{\cos \pi+i\sin\pi}33(cosπ+isinπ)⋅3cosπ+isinπ
−1-1−1
111
9(cosπ2+isinπ2)9(\cos\frac\pi2 +i\sin\frac\pi2)9(cos2π+isin2π)
Type a concept, like “slope” or “photosynthesis”.
