MCQ
The value of $9^2 - 1$ is equal to:
- ✓$80$
- B$79$
- C$81$
- DNone of the above.
✓
Answer
Correct option: A.
$80$
A. $80$
Solution:
$9^2 - 1 = 81 - 1 = 80$
Solution:
$9^2 - 1 = 81 - 1 = 80$
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