CBSE Class 12-science Answered

Yeah, that is true. Integration involving trignometic functions can have multiple forms of the answer. In such questions, you should always try to reduce the answer into the simplest form. Usually, the board officials for such questions try to provide teachers with all different forms of the  answer possible, but still, if your answer doesn't match with that provided, you can just hope and pray that the teacher will give you marks if its right. You can do nothing about it beforehand, rather than just trying to get it into the simplest form or something that is more common.