Question

4. If (3 + bi) + (7 – 2i) = 10 + 6i, find the value of b.

Answer 1

b = 8

Explanation:

The real part of the givens add correctly.

bi - 2i = 6i Add 2i to both sides.

bi = 6i + 2i

bi = 8i The i's will cancel

b = 8