Math, asked by rajeevgoel49, 2 months ago

Rationalise the colenominator 4
4-N5​

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Answered by Anonymous
10

Answer:

 \frac{4}{4 -  \sqrt{5} }  \times ( \frac{4 +  \sqrt{5} }{4 +  \sqrt{5} } ) \\  \frac{4(4 +  \sqrt{5)} }{ {(4)}^{2}  -  {( \sqrt{5} )}^{2} }  \\  \frac{4(4 +  \sqrt{5)} }{16 - 5}  \\  \frac{16 + 4 \sqrt{5} }{11}

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