Mathematics 10 — Exercise Review · Q1 (vi)
Full question
Find the multiplicative inverse of the expression below. Choose the correct option.
| Option | Value |
|---|---|
| a | 1 − i |
| b | i |
| c | ½ − ½i |
| d | −1/√2 + i/√2 |
Step-by-step solution
1/(1+i) = (1−i)/[(1+i)(1−i)] = (1−i)/2.
Answer
c: ½ − ½i