which expression is equivalent to (6^-2)^-1
A 6
B 6^-2
C 6^-3
D6^2
To simplify the given expression, we need to apply the exponent rules.
First, let's simplify (6^-2)^-1. According to the rule (a^m)^n = a^(m*n), we can multiply the exponents: -2 * -1 = 2.
Next, we have (6^2).
Therefore, the expression is equivalent to (6^-2)^-1 = 6^2.
The correct answer is D) 6^2.