This discussion is now closed.
Check out other Related discussions
- STEP Maths I, II, III 1989 solutions
- STEP maths I, II, III 1991 solutions
- Edexcel A-level Further Mathematics Paper 1 - 20th May 2025 [Exam Chat]
- Need help with why we do this.
- AQA A-level Further Mathematics Paper 1 - 22nd May 2025 [Exam Chat]
- Maths question differentiation
- Must we write the |x| as "-x" in this integral (A level FM core pure 2)
- Help with integration
- OCR A-level Mathematics A Paper 3 - 19th June 2025 [Exam Chat]
- Maths integration check
- Casio GX50 help - Area bounded by two curves
- OCR A-level Further Mathematics A Pure core 2 - 3rd June 2025 [Exam Chat]
- Isaac Physics Maths Question
- Is it too late for A level Maths?
- Stuck on an integration question - trigonemtric substitution?
- OCR A-level Further Mathematics B (MEI) Core pure - 22nd May 2025 [Exam Chat]
- AQA A-level Further Mathematics Paper 2 - 6th June 2025 [Exam Chat]
- Ball Dropped Onto Spring
- y = 3x sin(x)cos(x)
- AS Further Mathematics Edexcel
What's the integral of sin(x)sinh(x)?
11
I don't have the answer to this particular, indefinite integral, and I need to know if I've got it right. Also, I can't find it anywhere on the internet!
The answer I get is:
1/2 [sin(x)cosh(x) - cos(x)sinh(x)] + C
Thanks,
Ben
The answer I get is:
1/2 [sin(x)cosh(x) - cos(x)sinh(x)] + C
Thanks,
Ben
Scroll to see replies
Reply 1
15
42
Reply 2
15
Lord Huntroyde
42
LOL!!!
Reply 3
18
Huntroyde, you get your sig quotes from Private Eye don't you!
Reply 4
15
ZJuwelH
Huntroyde, you get your sig quotes from Private Eye don't you!
Ondeed I do, but my purchasing of P.E. Mediaballs today will mean I can change quotes more than just fortnightly.
Reply 5
18
I would know this if I knew the integral of sinhx, or what sinhx was for that matter. But I think the integral of sinx is -cosx...
Reply 6
Could it be -1/h cos (hx) + C?
Reply 7
Nevermind, mis read your question. What do you mean exactly? sin^2(x)or what?
Reply 8
Ben.S.
OP
11
Linda
Nevermind, mis read your question. What do you mean exactly? sin^2(x)or what?
You actually have helped a bit. I accidentally omitted the constant of integration - thanks.
Ben
Reply 9
Ben.S.
OP
11
Sinh(x) is a hyperbolic function and, unfortunately, is not sin(hx).
Sin(x) = 1/2i[e^(ix) - e^(-ix)] and sinh(x) = 1/2[e^(x) - e^(-x)]
Ben
Sin(x) = 1/2i[e^(ix) - e^(-ix)] and sinh(x) = 1/2[e^(x) - e^(-x)]
Ben
Reply 10
Ben.S.
Sinh(x) is a hyperbolic function and, unfortunately, is not sin(hx).
Sin(x) = 1/2i[e^(ix) - e^(-ix)] and sinh(x) = 1/2[e^(x) - e^(-x)]
Ben
Sin(x) = 1/2i[e^(ix) - e^(-ix)] and sinh(x) = 1/2[e^(x) - e^(-x)]
Ben
please tell me that's P6
(I'm only doing up to P5 this year)Reply 11
Ben.S.
OP
11
king of swords
please tell me that's P6 (I'm only doing up to P5 this year)
(I'm only doing up to P5 this year)It's complex numbers.
Oh, and it's absolute rubbish what I've written - I only bloody DIFFERENTIATED THE FLIPPING THING!!!!!
Ben
Reply 12
18
king of swords
please tell me that's P6 (I'm only doing up to P5 this year)
(I'm only doing up to P5 this year)Better not be P6, I'm doing that!
I saw all that and thought: in the words of Snoop Dogg, "wha-wha-wha-whaaaaaaa???"
Reply 13
Ben.S.
It's complex numbers.
Oh, and it's absolute rubbish what I've written - I only bloody DIFFERENTIATED THE FLIPPING THING!!!!!
Ben
Oh, and it's absolute rubbish what I've written - I only bloody DIFFERENTIATED THE FLIPPING THING!!!!!
Ben
If you differentiated it, it wouldn't be +c, now would it?
Reply 14
Linda
If you differentiated it, it wouldn't be +c, now would it?
ok so he did a hybrid of integration and differentiation lol
Reply 15
18
king of swords
ok so he did a hybrid of integration and differentiation lol
Intentiation or differegration... Newton and Fermat would be turning in their graves...
Reply 16
14
i think hyperbolic functions are p5.
im only going up to p4, thank god :]
im only going up to p4, thank god :]
Reply 17
1
Ben.S.
Sin(x) = 1/2i[e^(ix) - e^(-ix)] and sinh(x) = 1/2[e^(x) - e^(-x)]
Ben
Ben
huh?
what is h?
Reply 18
The answer is:
(sinxcoshx-cosxsinhx)/2
(sinxcoshx-cosxsinhx)/2
Reply 19
Ben.S.
OP
11
icy
huh?
what is h?
what is h?
Right, so I've got my new, improved (non-dintegrated) answer now!
I didn't do further - do you do hyperbolics like that?
The 'h' just means that we aren't dealing with sines and cosines any more.
Ben
Related discussions
- STEP Maths I, II, III 1989 solutions
- STEP maths I, II, III 1991 solutions
- Edexcel A-level Further Mathematics Paper 1 - 20th May 2025 [Exam Chat]
- Need help with why we do this.
- AQA A-level Further Mathematics Paper 1 - 22nd May 2025 [Exam Chat]
- Maths question differentiation
- Must we write the |x| as "-x" in this integral (A level FM core pure 2)
- Help with integration
- OCR A-level Mathematics A Paper 3 - 19th June 2025 [Exam Chat]
- Maths integration check
- Casio GX50 help - Area bounded by two curves
- OCR A-level Further Mathematics A Pure core 2 - 3rd June 2025 [Exam Chat]
- Isaac Physics Maths Question
- Is it too late for A level Maths?
- Stuck on an integration question - trigonemtric substitution?
- OCR A-level Further Mathematics B (MEI) Core pure - 22nd May 2025 [Exam Chat]
- AQA A-level Further Mathematics Paper 2 - 6th June 2025 [Exam Chat]
- Ball Dropped Onto Spring
- y = 3x sin(x)cos(x)
- AS Further Mathematics Edexcel
Latest
Trending
Last reply 5 months ago
Methods of rationalisation of denominators of complex numberLast reply 6 months ago
Which A-level Maths/Further Maths topics gave you the most trouble?Posted 6 months ago
Pls help me pls im acc gonna die pls pls help me AS EDEXCEL MATHSLast reply 6 months ago
Grade Boundaries Edexcel Further Maths 3A 3C (FP1 & FM1)Last reply 6 months ago
Edexcel AS Level Maths May 15th 2025 Pure Paper 1 + Unofficial Mark SchemeMaths Study Help
67
160
How The Student Room is moderated
To keep The Student Room safe for everyone, we moderate posts that are added to the site.
