marigirl one year ago Integration question. The question is to find the integral of -cosec6xcis6x Plz help! I thought to first integrate -cosec6x Which is 1/sin (6x).....a little stuck

1. nincompoop

can you rewrite that properly

2. marigirl

Integrate -cosec6xcot6x

3. anonymous

@nincompoop can you plz help me in a ques?

4. nincompoop

$$\huge \int -csc (6x) cot(6x) dx$$ like this?

5. marigirl

Does cse mean cosec? If so then yes

6. anonymous

Ok so rewrite it as -1/sin(6x) * cos(6x)/sin(6x) then you get -cos(6x)/sin^2(6x) Then find the derivative of sin(6x) then your finished and use the formula integ of u^ndu=u^n+1/n+1 +c

7. nincompoop

$$\huge -\frac{1}{sin} = -csc$$

8. nincompoop

$$\huge \frac{1}{tan} = cot$$

9. marigirl

Does cse mean cosec? If so then yes

10. nincompoop

yes

11. nincompoop

u-sub

12. anonymous

Look thats it

13. nincompoop

u = 6x du = 6 dx

14. anonymous

Did you understand it?

15. nincompoop

v = sin(u) dv = cos(u) du

16. nincompoop

those are you keys

17. anonymous

Your description and point is surely very feeble my friend so you're saying the Bible is demonic?

18. anonymous

In asking you a question that relates to what you've said hence fabricator

19. nincompoop

you really need to read the whole thing before you ruin your mind with fallacy

20. anonymous

No need since i spotted an error just from the very beginning which discourages me to continue this nonsense. Have a great day