## math_proof 2 years ago evaluate integrals F=<2y,-2x> by the region bounded by y=sinx and y=0 for 0<x<pi

1. mahmit2012

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2. mahmit2012

green theorem i used.

3. math_proof

how did you get area of being 2?

4. math_proof

and how would you do in in a circulation form like $\int\limits_{a}^{b}fx'(t)+gy'(t)dt$

5. mahmit2012

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6. math_proof

oooo i missed out the minus

7. math_proof

how would you do in in a circulation form?

8. mahmit2012

I eliminated minus from -4. take a look again.

9. mahmit2012

the question said y=sinx and y=0, so it is circulation curve.

10. math_proof

but it saus to evaluate both integrals in green's theorem and check for consistency

11. mahmit2012

region bounded with two curves.

12. mahmit2012

ok i'll show you the direction method also.

13. math_proof

thanks

14. mahmit2012

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15. mahmit2012

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16. mahmit2012

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17. math_proof

actually answer states that both are -8

18. math_proof

shouldn't you parametrize it to t?

19. math_proof

?