To simplify \(((1/2)^{10})^2\) using the Power Rule of Exponents, we apply the rule which states that \((a^m)^n = a^{m \cdot n}\).
In this case:
\[ ((1/2)^{10})^2 = (1/2)^{10 \cdot 2} = (1/2)^{20}. \]
So, the correct equivalent form from the choices can be represented as:
\[ (1/2)^{(10 \cdot 2)}. \]
Thus, the correct response would be:
\((1/2)^{(10 \times 2)}\).