625^-1/4 in Decimal Form

Question

\[ 625^{-1/4} \]

Solution

\[ 625 = 5^4 \] \[ (5^4)^{-1/4} = 5^{-1} \] \[ = \frac{1}{5} \] \[ = 0.2 \]

Answer

\[ \boxed{0.2} \]

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