Question

Divide Complex number
10-5i/3-i

(10-5i/3-1)(3+i/3+i) = 30-5i+5/10 = 35-5i/10

Instructors answer is 7/2-(1/2)i

need to divide by 5 somehow just not sure how

Answer 1

your answer is good:
35-5i/10 = 35/10 - 5i/10 = 7/2 - (1/2)i

Answer 2

so its just reduced by common factor of 5?

Answer 3

yes...

Answer 4

thanks