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If y= "tan"^(-1) (4x)/(1+5x^(2)) + "tan"...

If `y= "tan"^(-1) (4x)/(1+5x^(2)) + "tan"^(-1) (2 + 3x)/(3-2x)`, then prove that `(dy)/(dx)= (5)/(1+25x^(2))`

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