Math, asked by sarithabiju54897, 9 months ago

rationalise 3-√5 / 3+√5​

Answers

Answered by nikhil1685
0

Answer:

  • bkau7r0ydpygxogdosgsigsitsifsifsti to the one
Answered by amankumaraman11
0

  \huge \dag \:  \:  \:  \:  \bf \frac{3 -  \sqrt{5} }{3 +  \sqrt{5} }  \\  \\  \\   \sf=  >  \frac{3 -  \sqrt{5} }{3 +  \sqrt{5} }  \times  \frac{3 -  \sqrt{5} }{3 -  \sqrt{5} }  \\  \\ \sf  =  >  \frac{ {(3 -  \sqrt{5}) }^{2} }{ {(3)}^{2} -  {( \sqrt{5}) }^{2}  }  \\  \\ \sf  =  >  \frac{3 + 5 - 6 \sqrt{5} }{9 - 5}  =  \frac{8 - 6 \sqrt{5} }{4}  \\  \\  \sf =  >  \frac{2(4 - 3 \sqrt{5} )}{4} \:  \:  \:   =  \frac{ \red4 -  \red3 \sqrt{ \red5} }{ \red2}

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