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# What is (x^1/2 sin x )^2 ? watch

2. Could you use more brackets to help us understand what you are asking?
3. (Original post by Mr M)
Could you use more brackets to help us understand what you are asking?
Yh sorryy.. (x^(1/2) sin x ) all squared
4. Bumppp
5. (Original post by Mr M)
Could you use more brackets to help us understand what you are asking?
And I was just about to insist (following a certain thread) that the answer must be x^2/(4 sin^2 x)...
6. Ermm is the advert simply going to be( x sin^2 x)?? I need to work out the volume of revolution between limits pi and zero and I'm nt getting the correct answer.
8. Yes, it's just x sin^2 x.
9. (Original post by DFranklin)
Yes, it's just x sin^2 x.
It doesn't work wrk when I integrate it tho.. I integrate it by parts and I get (-1/2)xcos^2)x + (1/4)(sin^2 x) .. Is it correct ?
10. (Original post by Thisisj)
It doesn't work wrk when I integrate it tho.. I integrate it by parts and I get (-1/2)xcos^2)x + (1/4)(sin^2 x) .. Is it correct ?
11. (Original post by Thisisj)
It doesn't work wrk when I integrate it tho.. I integrate it by parts and I get (-1/2)xcos^2)x + (1/4)(sin^2 x) .. Is it correct ?
How can you rewrite sin^2x?
12. (Original post by Thisisj)
It doesn't work wrk when I integrate it tho.. I integrate it by parts and I get (-1/2)xcos^2)x + (1/4)(sin^2 x) .. Is it correct ?
No. You seem to think that . It isn't.
13. (Original post by DFranklin)
And I was just about to insist (following a certain thread) that the answer must be x^2/(4 sin^2 x)...
Or

14. (Original post by SsEe)
Or

Or .

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