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[" 108.If "y=(cot^(-1)x)^(2)" ,then show...

[" 108.If "y=(cot^(-1)x)^(2)" ,then show that "],[qquad (x^(2)+1)^(2)(d^(2)y)/(dx^(2))+2x(x^(2)+1)(dy)/(dx)=2]

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If y=(cot^(-1)x)^(2) , then show that (x^(2)+1)^(2)(d^(2)y)/(dx^(2))+2x(x^(2)+1)(dy)/(dx)=2.

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