Question

Raitionalise the dnominator 5/√7-√5

Answer 1

Answer:

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Answer 2

Answer:

⇢ ${\boxed{\rm{Required \: answer = \sqrt{7} + \sqrt{2}}}}$

Step-by-step explanation:

⇢ $\rm{\dfrac{5}{\sqrt{7} - \sqrt{2}}}$

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⇢ $\rm{\dfrac{5 \times ( \sqrt{7} + \sqrt{2})}{( \sqrt{7} - \sqrt{2) ) ( \sqrt{7} + \sqrt{2} )}}}$

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⇢ $\rm{\dfrac{5 \times (\sqrt{7} + \sqrt{2})}{(\sqrt{7})2 - (\sqrt{2})2}}$

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⇢ $\rm{\dfrac{5 \times (\sqrt{7} + \sqrt{2})}{7 - 2}}$

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⇢ $\rm{\dfrac{5 \times (\sqrt{7} + \sqrt{2})}{5}}$

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⇢ ${\boxed{\rm{\sqrt{7} + \sqrt{2}}}}$

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Thats the required answer.