[Open]
[Close]
微分問題....(求高手幫助___
1a) Differentiate with respect to x the quotient (x^3) / (x^2) + 1
1b) Find the rate of increase of y with respect to x ehwn x= (1/3)兀 rad ,given that y= (1/2)sinx. what is the smallest positive value of x for which the rate of increase is zero?
1c) For the expression y= 4+7x-(3x^3) find dy/dx , (d^2)y / (dx^2) Hence find the value of dy/dx when (d^2)y/dx^2 =9
希望列有步驟....唔該