nasty triple integration by parts question!
hello, i was wondering if someone could help me do this question? i've tried many times, but i can't seem to get a solid answer.
i know the final answer should be 1, but i can't form the correct integral to get this.
help would be very much appreciated, thanks!
i know the final answer should be 1, but i can't form the correct integral to get this.
help would be very much appreciated, thanks!
Original post by ZiggyStardust_
hello, i was wondering if someone could help me do this question? i've tried many times, but i can't seem to get a solid answer.
i know the final answer should be 1, but i can't form the correct integral to get this.
help would be very much appreciated, thanks!
i know the final answer should be 1, but i can't form the correct integral to get this.
help would be very much appreciated, thanks!
coxsinx can be replaced with 1/2sin2x (double angle formula)
Original post by the bear
you should use a well known trig relationship to replace cosx sinx
wOW im such a moron, i spent ages on this question and didn't even CONSIDER replacing sinxcosx ....smh
so just to check, i can change sinxcosx to 1/2sin2x right?
Original post by ZiggyStardust_
wOW im such a moron, i spent ages on this question and didn't even CONSIDER replacing sinxcosx ....smh
so just to check, i can change sinxcosx to 1/2sin2x right?
so just to check, i can change sinxcosx to 1/2sin2x right?
https://i.imgur.com/XJyemeI.jpg
Original post by Pretty Flako
coxsinx can be replaced with 1/2sin2x (double angle formula)
Would be a lot easier to use your answer to part a.
Use integration by parts letting u = cosx and v' = sinxe^cosx (very similiar to answer to part a) and you get a simple integration by parts, leaving you with 1 as the answer.
These questions often require you to use a part a
Or start out with the substitution of u=cosx so you get dx=du/sinx so then you get integral of ue^u du which is just a simple parts jobie 
.
.Original post by allen.ba.00
Would be a lot easier to use your answer to part a.
Use integration by parts letting u = cosx and v' = sinxe^cosx (very similiar to answer to part a) and you get a simple integration by parts, leaving you with 1 as the answer.
These questions often require you to use a part a
Use integration by parts letting u = cosx and v' = sinxe^cosx (very similiar to answer to part a) and you get a simple integration by parts, leaving you with 1 as the answer.
These questions often require you to use a part a
Actually yeah missed it was definite integration, that would be the easiest way in the case although if I was presented with the integral without part a, I would do it the way I did it.
Quick Reply
Related discussions
- Fourier Series finding An term
- A Level Maths AQA 2023
- Oxbridge Maths - Interview Questions
- GCSE paper 1 and paper 2
- Edexcel A2 Mathematics: Core Mathematics C4 6666 01 - 22 June 2018 [Exam Discussion]
- Edexcel AS Level Further Maths 2022
- gcse biology higher tier
- Second Undergraduate Degree Funding
- how tf do i start??? hyperbolics integration question
- Integration identification
- Applied Calculus Help
- what Integration technique should I be using?
- Integration by Parts 5
- Urgent mechanics question!!
- Integral Simplifying
- Is there a rule of thumb of when to use integration by parts or substitution?
- Space Monster attack Isaac Physics
- Is this in maths curriculum
- Integration
- Kinematics and calculus
Latest
Trending
Last reply 2 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 2 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
