- #1

duki

- 264

- 0

## Homework Statement

[tex]\int\sin(6\theta) d\theta[/tex]

## Homework Equations

## The Attempt at a Solution

[tex]\int6\cos6\theta[/tex]

Am I close?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter duki
- Start date

- #1

duki

- 264

- 0

[tex]\int\sin(6\theta) d\theta[/tex]

[tex]\int6\cos6\theta[/tex]

Am I close?

- #2

Feldoh

- 1,342

- 3

Or you could think of it like this:

If we take the derivative of [tex]\frac{d}{d \theta}(-cos(\theta)) = sin(\theta)[/tex]. That's sort of like the anti-derivative which you seek.

If we take the derivative of [tex]\frac{d}{d \theta}(-cos(6 \theta)) = 6sin(6 \theta)[/tex].

So from there it's easy to see that[tex]\int\sin(6\theta) d\theta = \frac{-cos(6\theta)}{6}[/tex]

- #3

duki

- 264

- 0

errr...

[tex]\frac{-\cos6\theta}{6}[/tex]

[tex]\frac{-\cos6\theta}{6}[/tex]

- #4

duki

- 264

- 0

thanks :)

- #5

Feldoh

- 1,342

- 3

Yeah looks right^^

Share:

- Replies
- 5

- Views
- 501

- Replies
- 2

- Views
- 528

- Last Post

- Replies
- 18

- Views
- 468

- Last Post

- Replies
- 3

- Views
- 416

- Replies
- 2

- Views
- 360

- Last Post

- Replies
- 14

- Views
- 1K

- Last Post

- Replies
- 1

- Views
- 758

- Replies
- 27

- Views
- 2K

- Replies
- 3

- Views
- 1K

- Replies
- 5

- Views
- 437