Question

If a = 6, which of the following is equal to a 2?1o-36O O-122

Answer 1

Solution:

The question given is a negative exponent.

To solve this, we apply the law of indices for negative exponents.

Negative exponent law is indicated below;

$a^{-x}=\frac{1}{a^x}$

Thus, applying this law to the question;

$a^{-2}=\frac{1}{a^2}$

Given:

a = 6

Substituting a = 6 into the expression, we have;

$\frac{1}{a^2}=\frac{1}{6^2}$

Therefore, the correct answer is;

$\frac{1}{6^2}$