Math, asked by justupadhyay98, 10 months ago

root5+ root3/root5-root3=a-broot15

Answers

Answered by jtg07
6

Step-by-step explanation:

 \frac{ \sqrt{5} +  \sqrt{3}  }{ \sqrt{5} -  \sqrt{3}  }  = a - b \sqrt{15}

 \frac{( \sqrt{5}  +  \sqrt{3} ) \sqrt{5} +  \sqrt{3}  }{( \sqrt{5} -  \sqrt{3} )( \sqrt{5}  +  \sqrt{3} }

 \frac{5 + 3 + 2 \sqrt{15} }{5 - 3}

 \frac{8 + 2 \sqrt{15} }{2}

 = 4 +  \sqrt{15}

comparing,

a=4

b=-1

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