- #1

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**Second Derivative**## Homework Statement

f(x) = sin (2x)^1/2 find the f"(x).

## Homework Equations

## The Attempt at a Solution

I dont know hw to do it...

- Thread starter athamz
- Start date

- #1

- 11

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f(x) = sin (2x)^1/2 find the f"(x).

I dont know hw to do it...

- #2

- 85

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How about the chain rule?

- #3

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Why not start by showing us what you do know?

At least pretend we have,

g(w) = w^(1/2).

How would you find the derivative?

The second derivative?

How have you been taught the chain rule? Can you show us a simpler example you've worked?

Also, read

https://www.physicsforums.com/showthread.php?t=414380

particularly the 2nd and 4th paragraphs underneath Homework Help.

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