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4+under root 5 upon 4 - under root 5 + 4 - under root 5 upon 4 + under root 5

Posted by Saurav Singh 6 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 3 months ago

{tex}4+\frac{\sqrt{5}}{4} \ - \sqrt{5}+\frac{4-\sqrt{5}}{4}+\sqrt{5}{/tex}
{tex}=4+\frac{\sqrt{5}}{4}+\frac{4-\sqrt{5}}{4}{/tex}
{tex}=\frac{16+\sqrt{5}+(4-\sqrt{5})}{4}{/tex}
{tex}=\frac{16+\sqrt{5}+4-\sqrt{5}}{4}{/tex}
{tex}=\frac{20}{4}{/tex}
=5

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