Answer :
we are given that a and b are real numbers . and that i is a square root of -1
so we expect a and be to be real numbers , this can be expressed as
a + b (i)
so option B is correct .
we are given that a and b are real numbers . and that i is a square root of -1
so we expect a and be to be real numbers , this can be expressed as
a + b (i)
so option B is correct .