(ITA 1976) Suppose that Z_(1) = a +xi and Z_(2) = a + yi, a ≠ 0, x ≠ 0 are two complex numbers, such that Z_(1)Z_(2) = 2. Then we have:

Question

(ITA 1976) Suppose that
`Z_(1)` = a +xi and
`Z_(2)` = a + yi, a ≠ 0, x ≠ 0 are two complex numbers, such that
`Z_(1)`
`Z_(2)` = 2. Then we have:

Answer 1

Answer: letter C

Explanation:

Resolusion below