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)
Find the trigonometric form of the number. (Round any angles to two decimal places.)
−8 − i
1 answer