Math, asked by milankotecha3, 1 month ago

Rationlise the denominator (1)2/√3-√5 (2) 1/√5-√4 (3) 5√3+3√5/ 5√3-3√5​

Answers

Answered by Anant124
2

Answer:

It should be correct answer

Attachments:
Answered by lalnunkimahmarjoute
0

Step-by-step explanation:

(1).

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

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

 \frac{2( \sqrt{3}  +  \sqrt{5} )}{3 - 5}

 \frac{2( \sqrt{3}   +  \sqrt{5}) }{ - 2}

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

(2).

 \frac{1}{ \sqrt{5}  -  \sqrt{4} }

 \frac{1}{ \sqrt{5}  -  \sqrt{4} }  \times  \frac{ \sqrt{5}  +  \sqrt{4} }{ \sqrt{5}  +  \sqrt{4} }

 \frac{ \sqrt{5}  +  \sqrt{4} }{5 - 4}

 \sqrt{5}  +  \sqrt{4}

(3).

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

 \frac{5 \sqrt{3} + 3 \sqrt{5}  }{5 \sqrt{3} - 3 \sqrt{5}  }  \times  \frac{5 \sqrt{3} + 3 \sqrt{5}}{5 \sqrt{3} + 3 \sqrt{5}}

 \frac{ {(5 \sqrt{3} + 3 \sqrt{5})}^{2} }{75 - 45}

 \frac{75 + 30 \sqrt{15} + 45 }{30}

 \frac{120 + 30 \sqrt{15} }{30}

 \frac{30(4 +  \sqrt{15} )}{30}

4 +  \sqrt{15}

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