What are the values of ‘a’ and ‘b’?

(the ‘i’ is the imaginary number)

Step-by-step explanation:

Recall that  

so

we have then

Isolating b in the second equation we get

b = 1-a

Replace this value in the first equation

Solving the quadratic equation we get two possible solutions for a  

Replacing these values in b=1-a, we get two possible solutions for b

7

step-by-step explanation:

45

step-by-step explanation: