Question

Determine in which quadrant the product of cos 3pi/4 + isin 3pi/4 and 4(cos pi/2 + isin pi/2) lies.

Answer 1

Explanation:

if cot=3/4 and the terminal point determined by is in quadrant 3, then ... cos ((3\pi )/(4)) ... The angle of elevation to the top of a 20-story skyscraper is measured to be 2 ... If the point P(-4/5,y) lies on the unit circle and P is in the third quadrant, what does y equal ...... if z1=5+5i and z2=8(cos(3pi/7)+isin(3pi/7)) then z1 z2=____?