The expression \((21x^{-2})^0\) can be simplified using the property of exponents that states any non-zero number raised to the power of 0 is equal to 1.
Thus, we have:
\[ (21x^{-2})^0 = 1 \]
Therefore, the equivalent expression is \(1\).
Which expression is equivalent to (21x^−2)^0
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