Finding the 1th Order Derivative of Function (a-b*c)/(b*c) on b
    Finding the 1th Order Derivative of Function aarctan((t^2 -1)/(2t))-((2at)/((t^2)+1)) on t
    Finding the 1th Order Derivative of Function t-1/t on t
    Finding the 1th Order Derivative of Function a*arctan(1/2(t-1/t)) -((2at)/((t^2)+1)) on t
    Finding the 1th Order Derivative of Function (t^2-1)/(t^2+1) on t
    Finding the 1th Order Derivative of Function (t*t-1)/(t*t+1) on x
    Finding the 1th Order Derivative of Function arctan((t^2 -1)/(2t))-((2at)/((t^2)+1)) on t
    Finding the 1th Order Derivative of Function 2a*arctant-((2at)/((t^2)+1)) on t
    Finding the 1th Order Derivative of Function ((t^2)-1)/(2t) on t
    Finding the 1th Order Derivative of Function arctan((t^2 -1)/(2t)) on t
    Finding the 1th Order Derivative of Function arctan((t^2 -1)/2t) on t
    Finding the 1th Order Derivative of Function ln[x+√(x^2+1)] on x
    Finding the 1th Order Derivative of Function ln[x+√(x^2-1)] on x
    Finding the 1th Order Derivative of Function ln[x+(x^2-1)^0.5] on x
    Finding the 1th Order Derivative of Function (x^5 + 1 - x + 1)/(x^5 + 1) on x
    Finding the 1th Order Derivative of Function tan（sinx） on x
    Finding the 1th Order Derivative of Function a/2(sech (1/2sqrt(a)x))^2 on x
    Finding the 2th Order Derivative of Function (x-1)(x-2)^2(x-3)^3(x-4)^4 on x
    Finding the 1th Order Derivative of Function ((1+a^2/x^2)^(2/3))/2*a^2 on x
    Finding the 1th Order Derivative of Function ((1+a^2/x^2)^(2/3))/2a^2 on x

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