Question

PLEASE LOOK AT THE PICTURE I REALLY NEED HELP!!

Answer 1

B

Explanation:

in complex numbers i²=-1

`(7-i)/(3-i)= ((7-i)(3+i))/((3-i)(3+i))= (21+3i+7i+i^(2) )/(3^(2) -i^(2) )= (21+10i-1)/(9+1)== (20+10i)/(10)=2+i`