-AT८ । ८।। tont 2011- 2,8
Question
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-AT८ । ८।। tont 2011- 2,8

JEE/Engineering Exams
Maths
Solution
72
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( left[frac{sqrt{x}+sqrt{y}}{sqrt{x}-sqrt{y}}-frac{sqrt{x}-sqrt{4}}{sqrt{x}+sqrt{y}}right][y-1 / 2-x-1 / 2] ) ( left[frac{(sqrt{x}+sqrt{y})^{2}-(sqrt{x}-sqrt{y})^{2}}{x-y}right][y-4 / 2-x-1 / 2] ) ( =left[frac{4 sqrt{x} sqrt{2}}{x-4}right]left[frac{1}{sqrt{y}}-frac{1}{sqrt{x}}right] ) ( frac{4 x+5}{x-y}left[frac{sqrt{x}-sqrt{2}}{sqrt{x}+y}right] Rightarrow frac{4(sqrt{x}-sqrt{4})}{x-y} )
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