Tuesday

October 21, 2014

October 21, 2014

Posted by **Robin** on Tuesday, June 18, 2013 at 2:41pm.

1) sqrt(2x+9)

2) cos(cos(x))

3) tan(x)

I already know how to find their derivatives I'm just not exactly sure what parts of the chain rule equation would be considered the outside and inside.

- Calculus -
**Steve**, Tuesday, June 18, 2013 at 3:32pmThe chain rule says that if we have u(x) and f(u(x)),

df/dx = df/du * du/dx

f is the outside function, u is the inside.

So, in the first case

f(u) = √u

u(x) = 2x+9

#2.

f(u) = cos(u)

u(x) = cos(x)

#3. Is almost a trick question.

f(u) = tan(u)

u(x) = x

**Answer this Question**

**Related Questions**

Maths Calculus Derivatives - Find the first derivative for the following ...

Derivatives - with respect to x f(cos x) if f'(x)= 1/x find (f(cos x))' i got ...

Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...

Math, derivatives - Let g(x) = sin (cos x^3) Find g ' (x): The choices are a) -...

Calculus - find the derivatives of the given functions. g(t)=sqrt t(1+t)/t^2 ...

Calculus - Okay so I have a question on my assignment that says: You are given ...

Trig - Find the exact values of the six trigonometric functions 0 if the ...

Calculus - Find the derivative of cos(sqrt(e^(x^3)cos(x)) I got -sin(sqrt(e^(x^3...

calculus - Differentiate. y= (cos x)^x u= cos x du= -sin x dx ln y = ln(cos x)^x...

Trigonometry - Please review and tell me if i did something wrong. Find the ...