Question

Find the trigonometric form of the number. (Round any angles to two decimal places.)

−8 − i

Answer 1

y = -1
x = -8

tanθ = y/x = 8
arctan 8 = 82.87° = 1.45
θ = 1.45 + pi = 4.59

r^2 = 1+64 = 65

So, -8-i = (√65,4.59)