- #1

- 3

- 0

f(X) = sin(cos(x^5))

and it tell me to find the first derivative of it.

would i first solve the derivative of (cos(x^5)) first and then that answer with sin?

or would i use the chain rule?

thanks in advanced.

- Thread starter i3uddha
- Start date

- #1

- 3

- 0

f(X) = sin(cos(x^5))

and it tell me to find the first derivative of it.

would i first solve the derivative of (cos(x^5)) first and then that answer with sin?

or would i use the chain rule?

thanks in advanced.

- #2

James R

Science Advisor

Homework Helper

Gold Member

- 600

- 15

Chain rule.

Start by putting [itex]u=cos(x^2)[/itex] and [itex]y = sin u.[/itex]

Start by putting [itex]u=cos(x^2)[/itex] and [itex]y = sin u.[/itex]

- #3

James R

Science Advisor

Homework Helper

Gold Member

- 600

- 15

Chain rule.

Start by putting [itex]u=cos(x^2)[/itex] and [itex]y = sin u.[/itex]

Start by putting [itex]u=cos(x^2)[/itex] and [itex]y = sin u.[/itex]

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