Question

2(2-i)/2+i find the value of a and b​

Answer 1

Step-by-step explanation:

rationalize the denominator then solve.

means multiply denominator and numerator with (2-i)

then you'll get 2(2-i)²/(2²-i²)

remember i²= -1

= 2x(4+i²-4i)/(4-(-1))

= 2x (3-4i)/5

=6/5-8/5i

a=6/5

b= -8/5

please cross check the answer