Answer
$\dfrac{1}{144}$
Work Step by Step
Evaluate the given expression by substituting the given values of the variable to obtain:
$=(3 \cdot 4)^{2(-1)}
\\=12^{-2}$
Use the rule $a^{-m} = \dfrac{1}{a^m}, a\ne0$ to obtain:
$=\dfrac{1}{12^2}
\\=\dfrac{1}{144}$
