Question

question is given above​

Answer 1

Answer:

${ \frac{3}{4} }^{3} - \frac{3}{{4}^{3} }$

Base are same let simply subtract the power

$\frac{3 {}^{3 - 1} }{4 {}^{4 - 3} }$

$\frac{3 {}^{2} }{4 {}^{1} }$

$\frac{3 {}^{2} }{4 {}^{1} } = \frac{9}{4}$

So your answer is

$\frac{9}{4}$

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