Finding the 1th Order Derivative of Function 1.775/（1+0.0337x+0.000221x*x） on x
    Finding the 2th Order Derivative of Function e^(-x^2)*cos(20*x) on x
    Finding the 1th Order Derivative of Function e^(-(x^2))*cos(20*x) on x
    Finding the 1th Order Derivative of Function （5-4x）^(1/2); on x
    Finding the 1th Order Derivative of Function k-0.2k^2 on k
    Finding the 1th Order Derivative of Function (x)^(1/x) on x
    Finding the 1th Order Derivative of Function x+e+sin60 on x
    Finding the 1th Order Derivative of Function sin（x） on x
    Finding the 1th Order Derivative of Function (1+sin(x))^cos(x) on x
    Finding the 1th Order Derivative of Function log12x/4+2 on x
    Finding the 1th Order Derivative of Function 2arctan14+4tanx on x
    Finding the 1th Order Derivative of Function 7x+sin（8x）+ln（2） on x
    Finding the 4th Order Derivative of Function xsinx-e(x^2)+1 on x
    Finding the 4th Order Derivative of Function ln(1+x^2)-x^2 on x
    Finding the 1th Order Derivative of Function a*x*ln(1+1/(1+exp(-x)) on x
    Finding the 2th Order Derivative of Function a*sin(bx)* exp(cx^2 ) on x
    Finding the 2th Order Derivative of Function asin(bx)* exp(cx^2 ) on x
    Finding the 1th Order Derivative of Function a*sin(b*x)* exp(cx^2 ) on x
    Finding the 1th Order Derivative of Function 5*sin(0.05*x)* exp(-0.01x^2 ) on x
    Finding the 1th Order Derivative of Function 5*sin(0.05*x)* exp(-x^2/100 ) on x

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