Math, asked by muskanrawat12, 1 year ago

plz solve this plz do not report this question

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Answers

Answered by HLK
6
This is the answer of question 29
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HLK: I was confused that u r asking Q29 or 30
muskanrawat12: both
Answered by ria113
12
Hey !!

Here's your answer ..
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Q. 29
Ans.

=>
 \frac{ \sqrt{3}     - \sqrt{2} }{ \sqrt{3} +  \sqrt{2}  }  +  \frac{ \sqrt{3}  +  \sqrt{2} }{ \sqrt{3}  -  \sqrt{2} }  \\  \\  =  >  \:  \frac{ \sqrt{3}  -  \sqrt{2} }{ \sqrt{3}  +  \sqrt{2} }   \times  \frac{ \sqrt{3} -  \sqrt{2}  }{ \sqrt{3}  -  \sqrt{2} } \:  +  \frac{ \sqrt{3} +  \sqrt{2}  }{ \sqrt{3}  -  \sqrt{2} }   \times  \frac{ \sqrt{3}  +  \sqrt{2} }{ \sqrt{3}  +  \sqrt{2} }  \\  \\  =  >  \frac{ {( \sqrt{3}  -  \sqrt{2} )}^{2} }{ 3 - 2}    +  \frac{ {( \sqrt{3} +  \sqrt{2} ) }^{2} }{3 - 2} \\  \\  =  >  \:  \:  \frac{3 - 2 \sqrt{6} + 2 }{1}  +  \frac{3 + 2 \sqrt{6} + 2 }{1}  \\  \\  =  >  \:  \:  \frac{3 -  2\sqrt{6}  + 2 + 3 + 2 \sqrt{6}  + 2}{1}  \\  \\  =  >  \:  \: 5 + 5 \\  \\  =  >  \:  \: 10 \\  \\  =  =  =  =  =  =  =  =  =  =  =  =  \\  \\ 30. \\ answer \\  \\ x =  \frac{ \sqrt{3} +  \sqrt{2}  }{ \sqrt{3}  -  \sqrt{2} }  \\  \\ x =  \frac{ \sqrt{3}  +  \sqrt{2} }{ \sqrt{3}  -  \sqrt{2} }  \times  \frac{ \sqrt{ 3}   +  \sqrt{2} }{ \sqrt{3}   +  \sqrt{2} }  \\  \\ x  =  \frac{ {( \sqrt{3}  +  \sqrt{2} )}^{2} }{3 - 2}  \\  \\ x = 3 + 2 \sqrt{6}  + 2 \\  \\ x = 5 + 2 \sqrt{6}  \\  \\ (1)  \:  \:  \frac{1}{x}  =  \frac{1}{5 +  2\sqrt{6} }  \\  \\  \frac{1}{x}  =  \frac{1}{5 + 2 \sqrt{6} }  \times  \frac{5  -  2 \sqrt{6} }{5 + 2 \sqrt{6} }  \\  \\  \frac{1}{x}  =  \frac{5 - 2 \sqrt{6} }{25 - 24}  \\  \\  \frac{1}{x}  =   5 - 2 \sqrt{6}  \\  \\ add \:  \: x \:   \\  \\ x +  \frac{1}{x}  = 5 + 2 \sqrt{6}  + 5 - 2 \sqrt{6}  \\  \\ x +  \frac{1}{x}  = 10 \\  \\ take \:  \: square \:  \: on \:  \: both \:  \: side \\  \\  {(x +  \frac{1}{x} )}^{2}  =  {(10)}^{2}  \\  \\  {x}^{2}  + \frac{1}{ {x}^{2} }  + 2x \times  \frac{1}{x}  = 100 \\  \\  {x}^{2}  +  \frac{1}{ {x}^{2} }  = 100 - 2 \\  \\  {x}^{2}  +  \frac{1}{ {x}^{2} }  = 98 \\  \\  \\ (2) {x}^{2}  +  \frac{1}{  {x}^{2} }  = 98 \\  \\ take \:  \: sqaure \:  \: on \:  \: both \: side \\  \\  {( {x}^{2}  +  \frac{1}{ {x}^{2} } )}^{2}  =  {(98)}^{2}  \\  \\  {x}^{4}  +  \frac{1}{ {x}^{4} }  + 2 {x}^{2}  \times  \frac{1}{ {x}^{2} }  = 9604 \\  \\  {x}^{4}  +  \frac{1}{ {x}^{4} }  = 9604 - 2 \\  \\  {x}^{4}  +  \frac{1}{ {x}^{4} }  = 9602 \\  \\  =  =  =  =  =  =  =  =  =  =  =  =
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Hope it helps..

Thanks : )

Anny121: great efforts siso !!
ria113: thanks !
Anny121: Sis , do check my recent english answer .
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