The multiplicative inverse of complex number 3 + 4i is:

Type: MCQ • Marks: 1

A. 3/25 - 4/25 i

B. -3/25 + 4/25 i

C. 3/5 - 4/5 i

D. 3/7 + 4/7 i

Explanation

Inverse of z = a + ib is (a - ib)/(a² + b²). Here (3 - 4i)/(3² + 4²) = 3/25 - 4/25 i.

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