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
    Finding the 2th Order Derivative of Function (sech x)^2 on x
    Finding the 1th Order Derivative of Function sech x on x
    Finding the 1th Order Derivative of Function x+1-sqrt(x*x-x+1) on x
    Finding the 1th Order Derivative of Function x^x^xln(x^x)+x^x^x^xln(x)+x^x^x^x on x
    Finding the 1th Order Derivative of Function xxxln(xx)+xxxxln(x)+xxxx on x
    Finding the 1th Order Derivative of Function （x+5）^（-1）; on x
    Finding the 1th Order Derivative of Function （x+5）^（-1）; on x

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