`f'''(x)=cos(x)`

`f''(x)=intcos(x)dx`

`f''(x)=sin(x)+C_1`

Now let's find C_1 , given f''(0)=3

`f''(0)=3=sin(0)+C_1`

`3=0+C_1`

`C_1=3`

`:.f''(x)=sin(x)+3`

(The entire section contains 88 words.)

## Unlock This Answer Now

Start your **48-hour free trial** to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Already a member? Log in here.