Question 43301
Given x + iy form, write in polar form: negative radical 5 + i

-sqrt(5) + i

r=sqrt[(sqrt(5))^2 + 1^2] = sqrt[5+1] = sqrt(6)

theta = arctan(1/(-sqrt(5))=155.91 degrees

polar form = (sqrt6)[sin(155.91)+icos(155.91)]

Cheers,
Stan H.