Question

the expression 10/(3 + i) is equivalent to:


1) 3 - i
2) (15 + 5i)/4
3) 3 + i
4) 5/4

Answer 1

=10/(3+i) * (3-i)/(3-i)
=10(3-i)/10
=3-i

Answer 2

3 - i

Answer 3

3-i

Answer 4

3-1