Question

Z=6(cos7pi/4+i-sen7pi/4) forma algebrica

Answer 1

$sen(\frac{7 \pi}{4})=-\frac{ \sqrt{2} }{2}\\ \\ cos(\frac{7 \pi}{4})=\frac{ \sqrt{2} }{2}\\ \\ \boxed{z=-\frac{ \sqrt{2} }{2}+\frac{ \sqrt{2} }{2}i}$