please answer the value of m
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Answer:
given the expression in the question be as follow .
\frac{5^{m}}{5^{-3}} = 125
5
−3
5
m
=125
As
125 = 5 ³
Put in the above expression
\frac{5^{m}}{5^{-3}} = 5^{3}
5
−3
5
m
=5
3
Now by using the exponent property
\frac{x^{a}}{x^{b}} = x^{a-b}
x
b
x
a
=x
a−b
Thus
5^{m-(-3)} = 5^{3}5
m−(−3)
=5
3
5^{m+3} = 5^{3}5
m+3
=5
3
Now compare power of the above expression
m + 3 = 3
m = 3 - 3
m = 0
Therefore the value of m is 0
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