Math, asked by Sonishka, 8 months ago

Find the rationalizing factor for the denominator of the expression 1/7+√2

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Answers

Answered by abhishekbansal3110
2

Answer:

 \frac{1}{7 +  \sqrt{2} }  \\  \frac{1}{7 +  \sqrt{2} }  \times  \frac{(7 -  \sqrt{2}) }{(7 -  \sqrt{2} } ) \\  =   \frac{7 -  \sqrt{2} }{( {7}^{2} -  {( \sqrt{2} )}^{2}  }  \\  =  \frac{7 -  \sqrt{2} }{49 - 2}  \\  =  \frac{7 -  \sqrt{2} }{47}

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