Question

the answer of the (1)st question

Answer 1

answer is 14 perform squaring on both sides and apply a plus b square formula

Answer 2

Hey friend!!!


Here's ur answer...


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$x + \frac{1}{x} = 4 \\ \\ squaring \: both \: sides \\ \\ (x + \frac{1}{x} {)}^{2} = (4 {)}^{2} \\ {x}^{2} + \frac{1}{ {x }^{2} } + 2 = 16 \\ \\ {x}^{2} + \frac{1}{ {x}^{2} } = 14$
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Hope it may help you...



Thank you :) :))