| १. 4:17_ 1-७ । _ _ (1) -3303 =० ॥...
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| १. 4:17_ 1-७ । _ _ (1) -3303 =० ॥ 3-

Defence Exams
Maths
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( y=frac{sin ^{-1} x}{sqrt{1-x^{2}}} ) ( sqrt{1-x^{2} y=sin ^{-1} x} ) Differentiating both sides ( frac{-2 x y}{2 sqrt{1-x^{2}}+sqrt{1-x^{2}} frac{d y}{d x}=frac{1}{sqrt{1-x^{2}}}} ) ( Rightarrow frac{-x y}{sqrt{1-x^{2}}+sqrt{1-x^{2}} y_{1}=frac{1}{sqrt{1-x^{2}}}} ) Differentiative again ( -y-y-x y_{1}-2 x y_{1}+left(1-x^{2}right) y_{2}=0 ) ( Rightarrowleft(1-x^{2}right) y_{2}-3 x y_{1}-y=0 ) Heres, proved.
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