Math, asked by umanguniyal92, 5 months ago

Rationalise the denominator of 7+√3
√7-√2

Answers

Answered by Anonymous
1

Answer:

 \frac{7 +  \sqrt{3} }{ \sqrt{7}  -  \sqrt{2} }  \\  \\  =  \frac{7 +  \sqrt{3} }{ \sqrt{7}  -  \sqrt{2} }  \times  \frac{ \sqrt{7}  +  \sqrt{2} }{ \sqrt{7} +  \sqrt{2}  }  \\  \\  =  \frac{(7 +  \sqrt{3})( \sqrt{7}  +  \sqrt{2}  )}{ {( \sqrt{7}) }^{2} -  {( \sqrt{2} )}^{2}  }  \\  \\  =  \frac{7 \sqrt{7}  + 7 \sqrt{2} +  \sqrt{21} +  \sqrt{6}   }{7 - 2}  \\  \\  =  \frac{7 \sqrt{7}  + 7 \sqrt{2}  +  \sqrt{21}  +  \sqrt{6} }{5}

hope this much helps uh ❣️

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