## A community for students. Sign up today

Here's the question you clicked on:

## lyssamonet 3 years ago how do you find the derivative of f(x)=xsinx+1/cosx?

• This Question is Open
1. NoelGreco

Can you put some parentheses on the right-hand side? It's ambiguous.

2. MathPhysics

NoelGreco is right, you gotta clarify that

3. Xavi

If you mean (xsinx+1)/cosx,then use the rule of divide to get ((cosx)(xcosx+sinx)-(xsinx+1)(-sinx))/(cosx)^2 If you mean xsinx+ 1/cosx,then,find the derivative seperately.Namely,(xcosx+sinx)+secxtanx

4. pasta

product rule for the first part and quotient for the second

5. bilgads

$\frac{ x }{ \cos ^{2}(x) } + tanx (\frac{ \cos x -1}{ \cos x } )$

6. pasta

sinx+cosx-(sinx/cos^2x)

7. adi171

hmmmm... first use product rule for xsinx... then 1/cosx = secx.... find derivative of secx.. job done

#### Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy