plz solve Q-1,2,3,4.
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![\frac{4}{ {(216)}^{ \frac{ - 2}{3} } } - \frac{1}{ {(256)}^{ \frac{ - 3}{4} } } \\ \\ = 4 \times {(216)}^{ \frac{ 2}{3} } - {(256)}^{ \frac{3}{4} } \\ \\ = 4 \times { (\sqrt[3]{216}) }^{2} - {( \sqrt[4]{256}) }^{3} \\ \\ = 4 \times {(6)}^{2} - {(4)}^{3} \\ \\ = 144 - 64 \\ = 80 \frac{4}{ {(216)}^{ \frac{ - 2}{3} } } - \frac{1}{ {(256)}^{ \frac{ - 3}{4} } } \\ \\ = 4 \times {(216)}^{ \frac{ 2}{3} } - {(256)}^{ \frac{3}{4} } \\ \\ = 4 \times { (\sqrt[3]{216}) }^{2} - {( \sqrt[4]{256}) }^{3} \\ \\ = 4 \times {(6)}^{2} - {(4)}^{3} \\ \\ = 144 - 64 \\ = 80](https://tex.z-dn.net/?f=+%5Cfrac%7B4%7D%7B+%7B%28216%29%7D%5E%7B+%5Cfrac%7B+-+2%7D%7B3%7D+%7D+%7D+-+%5Cfrac%7B1%7D%7B+%7B%28256%29%7D%5E%7B+%5Cfrac%7B+-+3%7D%7B4%7D+%7D+%7D+%5C%5C+%5C%5C+%3D+4+%5Ctimes+%7B%28216%29%7D%5E%7B+%5Cfrac%7B+2%7D%7B3%7D+%7D+-+%7B%28256%29%7D%5E%7B+%5Cfrac%7B3%7D%7B4%7D+%7D+%5C%5C+%5C%5C+%3D+4+%5Ctimes+%7B+%28%5Csqrt%5B3%5D%7B216%7D%29+%7D%5E%7B2%7D+-+%7B%28+%5Csqrt%5B4%5D%7B256%7D%29+%7D%5E%7B3%7D+%5C%5C+%5C%5C+%3D+4+%5Ctimes+%7B%286%29%7D%5E%7B2%7D+-+%7B%284%29%7D%5E%7B3%7D+%5C%5C+%5C%5C+%3D+144+-+64+%5C%5C+%3D+80)
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