How do we integrate cosx divided by cos4x?
226 Views|Posted 2016-07-16 00:20:58
Asked by Siddharth Rathod
1 Answer
Answered by
2016-07-21 14:38:48
This is easy.but you have to use a formula that transforms the product cosxcos4x into a sum.
HERE cos(4x)cos(x)=(1/2)[cos(5x)-cos(3x)}
Anyway the answer is (1/10)[sin(5x)]+(1/6)[sin(3x)]+c
Minoas
Upvote 
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else.
On Shiksha, get access to
66K
Colleges
|
1.2K
Exams
|
7.1L
Reviews
|
1.9M
Answers
Didn't find the answer you were looking for?
Search from Shiksha's 1 lakh+ Topics
or
Ask Current Students, Alumni & our Experts
Have a question related to your career & education?
or
See what others like you are asking & answering