You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
derivatives
- Thread starter taylor13
- Start date
D
Deleted member 4993
Guest
taylor13 said:What is the derivative of f(x)= -x+tanx?
What do you think?
If
\(\displaystyle f(x) \ = \ g(x) + h(x)\)
then,
\(\displaystyle \frac{df(x)}{dx} \ = \ \frac{dg(x)}{dx} + \frac{dh(x)}{dx}\)
Please show us your work, indicating exactly where you are stuck - so that we may know where to begin to help you.
D
Deleted member 4993
Guest
taylor13 said:the derivative of tanx=sec^2x and i think the derivative of -x=-1 but after that i am lost!
Like I explained - add those up.
\(\displaystyle \frac{d}{dx}[-x \ + \ tan(x)] \ = \ -1 \ + \ sec^2(x)\)
You could further simplyfy it using:
\(\displaystyle sec^2(x) \ = \ 1 \ + \ tan^2(x)\)