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Exponents and Powers — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSExponents and Powers1 Mark
MCQ
The multiplicative inverse of $7^{-2}$is:
  • ✓
    $7^2$
  • B
    $7$
  • C
    $\frac{1}{7^2}$
  • D
    $\frac{1}{7}$
✓

Answer

Correct option: A.
$7^2$
A.  $7^2$
Solution:
The multiplicative inverse of any value is the one which when multiplied by the original value gives a value equal to $1.$
$7^{-2} = \frac{1}{7^2}$
Hence, $7^{2}\times\frac{1}{7^2}=1$

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