Finding the 1th Order Derivative of Function sqrt((x^2-4)/(x^2+4)) on x
    Finding the 1th Order Derivative of Function -(sqrt(x^2+1)/x)+ln(x+sqrt(x^2+1)) on x
    Finding the 1th Order Derivative of Function log（5，x^2)/(x+1)^3 on x
    Finding the 1th Order Derivative of Function cosx（x＋1） on x
    Finding the 1th Order Derivative of Function ex（x－1）/x2 on x
    Finding the 1th Order Derivative of Function （R^2-x^2-y^2）^(1/2) on x
    Finding the 1th Order Derivative of Function (a(5-a)/2)^2+((5-2a)/3)^3 on a
    Finding the 2th Order Derivative of Function 3x^4-4x^3+1 on x
    Finding the 1th Order Derivative of Function arctan((1-x^2)^0.5) on x
    Finding the 1th Order Derivative of Function arctan(sqrt(1-x^2)) on x
    Finding the 1th Order Derivative of Function (x-1)*e(π/4+arctanx) on x
    Finding the 1th Order Derivative of Function (x-1)^eπ/4+arctanx on x
    Finding the 1th Order Derivative of Function (x-1)^e(π/4+arctanx) on x
    Finding the 1th Order Derivative of Function 2tanx-4/3(tanx)^3+2/5(tanx)^5; on x
    Finding the 1th Order Derivative of Function xlnx-x^3+x^2 on x
    Finding the 1th Order Derivative of Function lg（x）-sin（9/20 πx） on x
    Finding the 1th Order Derivative of Function sin（9/20x） on x
    Finding the 1th Order Derivative of Function cosx^10+sinx+（sinx）-2cosx+logx^7 on x
    Finding the 1th Order Derivative of Function {1/(x^2)}lnx on x
    Finding the 1th Order Derivative of Function (x^2)/sinx on x

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