Printable View
1.differentiate the function using the quotient rule.
fx=cos(5x)/x^4
2.fx=(x+3)/(x-2). Derivitive?
3.
http://www.webassign.net/cgi-bin/sym...%28x%2B7%29%29Derivitive?
4.
http://www.webassign.net/cgi-bin/sym...5%20csc%28s%29derivitive?
5.
http://www.webassign.net/cgi-bin/sym...%2A%2A2%2B2%29derivitive
6.Find the second derivative of the function.
f(x) = 2x + 25x−2
7.Find f '''(x).
http://www.webassign.net/cgi-bin/sym...0%3D%202-6%2Fx
it seems as though you're stuck with the quotient rule, how about you try one and I'll see where you're having problems and try to help you
ok thank you. I have tried all of them and got wrong answers. I will try number 2.
fx= (x+3)/(x+2)
=x+2-x-3/x^2+4x+4
=-1/x^2+4x+4??
Quote:
Originally Posted by giants1080
So i think you want the deriv of f(x)
and simplify from there
Notice that the first '1' is the deriv of the numerator and the second '1' is the deriv of the denominator