## A community for students. Sign up today!

Here's the question you clicked on:

## salparadise64 9 months ago need help proving reduction formula for calc

• This Question is Closed
1. salparadise64

please...

2. salparadise64

@roadjester

3. roadjester

who's the author of your book?

4. roadjester

Stewart?

5. salparadise64

james stewart

6. roadjester

What edition?

7. salparadise64

calculus early transcendental 7th E

8. salparadise64

@abb0t

9. roadjester

Damn, I've got Calculus 6th oh well

10. roadjester

Let me think; haven't done calc in a while

11. salparadise64

hmmmmm

12. roadjester

I'm just gonna BS this, maybe something will come to me. $$\int{tan^nxdx=\int tan^{n-1}}(x) tan(x)dx$$

13. salparadise64

pg 469 section 7.1 #53

14. salparadise64

yeah, i have the solution manual too, i was hoping someone would be able to explain it.

15. roadjester

oookkaay; I think the solution is self-explanatory...

16. myininaya

$\int\limits_{}^{}\tan^n dx=\int\limits_{}^{}\tan^{n-2}(x)\tan^2(x) dx=\int\limits_{}^{}\tan^{n-2}(x)(\sec^2(x)-1) dx$ $=\int\limits_{}^{}\tan^{n-2}(x)\sec^2(x)-\int\limits_{}^{}\tan^{n-2}(x) dx$ do a sub let u=tan(x) du=sec^2(x) dx and you will see you are almost done

17. salparadise64

@myininaya thank you!

18. Not the answer you are looking for?
Search for more explanations.

Search OpenStudy

#### Ask your own question

Ask a Question
Find more explanations on OpenStudy