Finding the 1th Order Derivative of Function (16-x*x)/(4+0.25*x*x)^2 on x
    Finding the 1th Order Derivative of Function asin0.5 on x
    Finding the 1th Order Derivative of Function [1.24/(1+r)+1.24/(1+r)^(t-1)]*(t-1)/2+[(61-t)*1.05/(1+r)^t] on r
    Finding the 4th Order Derivative of Function x(x-9)(x-9)^(-1) on x
    Finding the 4th Order Derivative of Function x(x-9)(x-9)^10000 on x
    Finding the 4th Order Derivative of Function x(x-9)(x-9) on x
    Finding the 4th Order Derivative of Function x(x-9)^2 on x
    Finding the 4th Order Derivative of Function x(x-9) on x
    Finding the 1th Order Derivative of Function ((x-1)(x-2)(x-3)(x-4))^2 on x
    Finding the 1th Order Derivative of Function (x-1)(x-2)(x-3)(x-4) on x
    Finding the 1th Order Derivative of Function (ln(x))/x on x
    Finding the 1th Order Derivative of Function sinx*cosx^5; on x
    Finding the 1th Order Derivative of Function e^x(2x-1)/x-1 on x
    Finding the 1th Order Derivative of Function (3323+200x) * 150+7（36-x） on x
    Finding the 1th Order Derivative of Function (y-x)/(y-150) on x
    Finding the 3th Order Derivative of Function ln((1-x)/(1+x)) on x
    Finding the 2th Order Derivative of Function (y-x)/(x+20) on x
    Finding the 1th Order Derivative of Function (cosx)^2 on x
    Finding the 1th Order Derivative of Function x^2+4x on x
    Finding the 2th Order Derivative of Function （0.1+0.05*x)*x on x

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