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[" प्रशन 9."y=sin^(-1)((2x)/(1+x^(2)))],...

[" प्रशन 9."y=sin^(-1)((2x)/(1+x^(2)))],[" हल : "y=sin^(-1)((2x)/(1+x^(2)))" माना "x=tan theta],[rArrquad y=sin^(-1)((2tan theta)/(1+tan^(2)theta))]

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