Shadowless
Member
- Joined
- May 3, 2010
- Messages
- 342
- Gender
- Male
- HSC
- 2012
I'm not sure if I missed something but the question basically asks me to express sinh 3x as a cubic polynomial in sinh x. And then integrate: sinh^3 x against x.
Now... my answer is almost the same as the one in the book... the only difference being I have a '+ C'.
I've also noticed that other integral questions don't have a '+ C' in the answer.
So my question is... are there no '+ C' when integrating hyperbolic functions? (Maybe I missed something during the lecture?)
Now... my answer is almost the same as the one in the book... the only difference being I have a '+ C'.
I've also noticed that other integral questions don't have a '+ C' in the answer.
So my question is... are there no '+ C' when integrating hyperbolic functions? (Maybe I missed something during the lecture?)