Question

If (1 + i)-20 = a + ib, then the value of a and b is:
(a) a = 2-10, b = -2-10
(b) a=-2-10,b=0
(c) a = 2-10, b=0
(d) none of these
200

Answer 1

Answer:

Ans:D

None of this above options.

Step-by-step explanation:

1+i-20=a+ib

-19+i=a+ib

Now equating the real and imaginary parts we get,

a=-19 and b=1