MCQ
For any two non-zero rational nmbers a, $(\text{a}^3)^{-2}$ is equal to:
- A$\text{a}^9$
- ✓$\text{a}^{-6}$
- C$\text{a}^{-9}$
- D$\text{a}^1$
✓
Answer
Correct option: B.
$\text{a}^{-6}$
$(\text{a})^{-2}=\text{a}^3\times(-2)$
$=\text{a}^{-6}$
$=\text{a}^{-6}$
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