Finding the 1th Order Derivative of Function t/(1+t) on t
    Finding the 1th Order Derivative of Function 0.90236+0.00090765xe^x on x
    Finding the 2th Order Derivative of Function 10-5/(x+5) on x
    Finding the 1th Order Derivative of Function 10-5/x+5 on x
    Finding the 1th Order Derivative of Function -x^4+75x^3-1875x^2+25^3 on x
    Finding the 1th Order Derivative of Function sin(cosx) on x
    Finding the 1th Order Derivative of Function sin30; on x
    Finding the 1th Order Derivative of Function sqrt((1/(n-1))*((a-x)^2+(b-x)^2))/sqrt(n) on x
    Finding the 1th Order Derivative of Function sqrt((1/(n-1))*((x1-x)^2+(x2-x)^2)/sqrt(n) on x
    Finding the 2th Order Derivative of Function k(x^2-3)^2 on x
    Finding the 2th Order Derivative of Function 6(x^2-3)^2 on x
    Finding the 1th Order Derivative of Function ln（ln（x）） on x
    Finding the 1th Order Derivative of Function a(a+1)(a+3.5)(a+3+j2)(a+3-j2) on x
    Finding the 1th Order Derivative of Function -1/2ln（x^2+1） on x
    Finding the 1th Order Derivative of Function ln（x+1） on x
    Finding the 1th Order Derivative of Function ln（x2+1） on x
    Finding the 1th Order Derivative of Function (sinx/x)^2 on x
    Finding the 1th Order Derivative of Function 198.5*exp(12.64-4970/x)-0.231*x on x
    Finding the 1th Order Derivative of Function d^2*(x+y)+a+b^2/x+c^2/y-r*(b^2/x+c^2/y-h) on x
    Finding the 1th Order Derivative of Function d^2*(x+y)+a+b^2/x+c^2/y-r(b^2/x+c^2-h) on x

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