Question

find the value of a and b​

Answer 1

Answer:

a=-1 and b=1

Step-by-step explanation:

1+7i/4+i^2-4i

=1+7i/3-4i

Ratinalizing the denominator

we get

=(1+7i)(3+4i)/(3-4i)(3+4i)

=25i-25/9+16

=25 (-1+i)/25

=-1+i

=a+ib

hence a=-1 and b=1

Answer 2

Value of a=1 and value of b=1