Question

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plzz help..
i will mark u as brainliest.

Answer 1

Hope u like my process
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$\sqrt{ \frac{ \sqrt{2} - 1}{ \sqrt{2} + 1} } \\ \\ = \sqrt{ \frac{( \sqrt{2} - 1)( \sqrt{2} - 1) }{( \sqrt{2 } + 1)( \sqrt{2} - 1) } } \\ \\ = \sqrt{ \frac{ {( \sqrt{2} - 1)}^{2} }{ {( \sqrt{2}) }^{2} - {1}^{2} } } = \sqrt{ \frac{ {( \sqrt{2} - 1) }^{2} }{2 - 1} } \\ \\ = \sqrt{ \frac{ {( \sqrt{2} - 1)}^{2} }{1} } = \sqrt{2} - 1 \\ \\ = 1.414 - 1 = 0.414$
Hope this is ur required answer

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