Math, asked by ananyamitta, 9 hours ago

rationalize the denominator of 3-√5 divided 3+2√5

Answers

Answered by roysreejani10
0

Answer:

9√5-19/11

Step-by-step explanation:

Explanation given in the picture.

Hope it helps.

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Answered by Kitsch
2

Answer:

==>> 3 - √5/ 3 + 2√5

 \frac{(3 -  \sqrt{5)} }{(3 + 2 \sqrt{5}) }  \times  \frac{(3 - 2 \sqrt{5}) }{(3 - 2 \sqrt{5)} } \\  \frac{9 - 6 \sqrt{5}   \:  - 3 \sqrt{5} \:  + 2 \times 5}{ {3}^{2} \:  -  {(2 \sqrt{5})}^{2}   } \\  \frac{9 - 9 \sqrt{5}  \:  + 10 }{9 - 4 \times 5}  \\  \frac{19 - 9 \sqrt{5}}{9 - 20}  \\  \frac{19 - 9 \sqrt{5}  }{ - 11} \\   \frac{- 19 + 9 \sqrt{5}  }{11}

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