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[" R& "Q." 8.If "y=(x cos^(-1)x)/(sqrt(1...

[" R& "Q." 8.If "y=(x cos^(-1)x)/(sqrt(1-x^(2)))-log sqrt(1-x^(2))" ,then prove that "],[qquad (dy)/(dx)=(cos^(-1)x)/((1-x^(2))^(3/2))" ."]

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