How do you divide (-1+5i)/(3-i) 1+5i3i in trigonometric form?

1 Answer
Dec 4, 2016

In Trigonometric form
sqrt13/sqrt5 [cos (-60.26) +i sin (97.12)]135[cos(60.26)+isin(97.12)]

Explanation:

In trigonometric form consider Z1 = (1+5i) and Z2=(3-i) and A1 = inv tan (- 5/1) = -78.69 and A2 = inv tan (- 1/3) = -18.43

mod z1 = sqrt26 and mod z2 = sqrt10

the number would be
z1/z2 [cos (A1 -A2) + i sin (A1+A2)]

(sqrt13sqrt2)/(sqrt5sqrt2) [cos (-60.26) + i sin (9.12)]
(sqrt13)/(sqrt5) [cos (-60.26) + i sin (9.12)]