Question

z1 = 9 + 5i, z2 = 4- 2i, product will be​

Answer 1

Answer:

Z1*Z2

=(9+5i)*(4-2i)

=9*4-9*2i+5i*4-5*2*i^2

=36-18i+20i-10i^2

=36+2i-10*-1

=36+2i+10

=46+2i (ans).....