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# FP3 Area of Surface of revolution

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1. Hi everyone

Can any one tell me if I am doing the right thing for Q 7 c). I am stuck up to hear. Have no idea what to do next. Attachment 522249

Thanks.

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2. This isn't surface area of revolution - just standard integration.
3. (Original post by B_9710)
This isn't surface area of revolution - just standard integration.
Opps! Thanks very much

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4. (Original post by 123321123)
Opps! Thanks very much

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Hi I still don't know how to do the simple integration. Could you explain a bit to me plz? Thanks

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5. (Original post by 123321123)

Hi I still don't know how to do the simple integration. Could you explain a bit to me plz? Thanks

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Go back to and use integration by parts like you would on
6. (Original post by 16Characters....)
Go back to and use integration by parts like you would on
Basically this.
Remember, if you can integrate x multiplied by the function's derivative, then you can integrate the function itself (using parts with 1 and the function).
So working out dy/dx should serve as a hint/help for the integration.

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