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54×5357=\frac{5^4 × 5^3}{5^7}=

A1

B58

C25

D5

Answer:

A. 1

Read Explanation:

am×an=am+na^m\times{a^n} = a^m+n

54×5357\frac{5^4 × 5^3}{5^7}

=54+357=\frac{5^{4+3}}{5^7}

=5757=\frac{5^7}{5^7}

=1=1


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