Mathematics 10 — Exercise Review · Q1 (viii)

Full question

Find the conjugate of the expression below. Choose the correct option.

9-4×i

OptionValue
a−9 − 4i
b9 + 4i
c9 + 9i
d4 − 9i

Step-by-step solution

  1. Keep the real part 9 and reverse −4i to +4i.

Answer

b: 9 + 4i