Math, asked by ramsingh8505909478, 10 months ago

simplify √5-2÷√5+2-√5+2÷√5-2​

Answers

Answered by Sharad001
174

Question :-

Simplify this ,

 \rightarrow \:  \:  \frac{ \sqrt{5}  - 2}{ \sqrt{5} + 2 }  -  \frac{ \sqrt{ 5 } + 2 }{ \sqrt{5}  - 2}  \\

Answer :-

→ -8√5

Explanation :-

\rightarrow \:  \:  \frac{ \sqrt{5}  - 2}{ \sqrt{5} + 2 }  -  \frac{ \sqrt{ 5 } + 2 }{ \sqrt{5}  - 2}  \\  \:  \\ \rm{taking \: lcm } \\  \\  \rightarrow \:  \frac{ {( \sqrt{5} - 2) }^{2} -  {( \sqrt{5} + 2) }^{2}  }{( \sqrt{5}  - 2)( \sqrt{5}  + 2)}  \\  \\  \rightarrow \:  \frac{5 + 4 - 4 \sqrt{2} - 5 - 4 - 4 \sqrt{5}  }{5 - 4}  \\  \\  \rightarrow \:  \frac{ - 8 \sqrt{5} }{ \: }   \\  \\

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