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# Integration Question Watch

1. Could someone please help me integrate the term: tanx.cosx

Any help would be appreciated, I just don't know where to begin. Like should I convert the cosx to another term and then proceed from there? Thank you
2. (Original post by Klink)
Could someone please help me integrate the term: tanx.cosx

Any help would be appreciated, I just don't know where to begin. Like should I convert the cosx to another term and then proceed from there? Thank you
Can you express tanx in terms of sinx and cosx?
3. (Original post by Klink)
Could someone please help me integrate the term: tanx.cosx

Any help would be appreciated, I just don't know where to begin. Like should I convert the cosx to another term and then proceed from there? Thank you
4. Okay! I understand so far. Does that mean that I only need to integrate sinx, and the answer is -cosx??
5. (Original post by Klink)
Okay! I understand so far. Does that mean that I only need to integrate sinx, and the answer is -cosx??
That would be correct. However, you need to +c at the end since your integral is indefinite.
6. Of course! That pesky "+c"

Thank you everyone! ( and for making me realise how much revision I actually need to do :P )

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