How to Solve Calculus Problems Quickly and Efficiently?

[dth257]

Calculus Problem!

need help with d

 

[SammyS]

[ IMG]http://i212.photobucket.com/albums/cc99/munteo/prm-1_zps25a60cf1.jpg[/PLAIN]
need help with d

Hello dth257. Welcome to PF !

What is f '(x) ?

What is f^-1(0) ?

 

[dth257]

I'm sorry i don't know what you meant. Are you asking questions or showing me the way to do it?

 

[Ray Vickson]

need help with d

Show your work. Forum rules require you to do some work on your own first, before seeking help.

 

[SammyS]

I'm sorry i don't know what you meant. Are you asking questions or showing me the way to do it?

You said you needed help with part (d), so I assumed you know how to do parts a, b, c .

 

[dth257]

I'm sorry for misunderstand.
a. f(1)= 0
b. f'(1)= sqrt(5)/5=.447214

 

[Dick]

I'm sorry for misunderstand.
a. f(1)= 0
b. f'(1)= sqrt(5)/5=.447214

Showing your work means not only giving the answers but trying to explain how you got them. What about c)? Once you've got that there is a formula for differentiating inverse functions. See http://en.wikipedia.org/wiki/Inverse_functions_and_differentiation Is that the part you are missing?

 

[dth257]

I'm sorry I'm a newbie in here. I don't know how to type these mathematical equations in the forum. It would take me few hours to just type all of the work down.( that why i posted the picture instead of type them out) So i just gave out the answer. That's the fastest way i can do.

 

[Dick]

I'm sorry I'm a newbie in here. I don't know how to type these mathematical equations in the forum. It would take me few hours to just type all of the work down.( that why i posted the picture instead of type them out) So i just gave out the answer. That's the fastest way i can do.

Fastest isn't best. Any thoughts about c)?