Practice problem
Find yzyzyz if y=4eπi4y = 4 e^{\frac{\pi i}{4}}y=4e4πi z=3e2πi3z = 3e^{\frac{2\pi i}{3}}z=3e32πi
7 cis(11π12)7\text{ cis}\left(\frac{11\pi}{12}\right)7 cis(1211π)
7 cis(−2π212)7\text{ cis}\left(\frac{-2\pi^2}{12}\right)7 cis(12−2π2)
12 cis(11π12)12\text{ cis}\left(\frac{11\pi}{12}\right)12 cis(1211π)
12 cis(−2π212)12\text{ cis}\left(\frac{-2\pi^2}{12}\right)12 cis(12−2π2)
Type a concept, like “slope” or “photosynthesis”.
