Question

Solve using identity a2+ 1/a2

Answer 1

Answer:

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Answer 2

Answer:

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Step-by-step explanation:

$as \: we \: now \\ (a + b) ^{2} = a ^{2} + b ^{2} + 2ab... \\ we \: can \: write \: above \: equation \: as.. \\ a^{2} + \frac{1}{a ^{2} } + 2 \times a^{2} \times \frac{1}{a ^{2} } - 2 \times a ^{2} \times \frac{1}{a ^{2} } \\ by \: using \: above \: formula \: we \: can \: write \: that \\ (a + \frac{1}{a} )^{2} - 2 \times a ^{2} \times \frac{1}{a ^{2} } \\ (a + \frac{1}{a} ) ^{2} - 2$

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