## anonymous 5 years ago Help please :P

1. Mertsj

I called 911

2. jhonyy9

???

3. anonymous

Show geometrically why $\int\limits_{1}^{0}\sqrt{2-x ^{2}}dx$ = (pi/4)+(1/2)

4. anonymous

Sorry I am bad at writing equations

5. anonymous

it's a circle :P

6. anonymous

You have to break the area under y=sqrt(2-x^2) into two peices a circle and and a triangle

7. anonymous

Sorry a sector of a circle and a right triangle

8. anonymous

|dw:1327347617343:dw|

9. anonymous

yup so. the first part is the sector of a circle (1/4)(area of the circle) + the second part which is the triangle from sqrt(2) to 1.

10. anonymous

well we need the area only from 0 to 1

11. anonymous

ehhhhhhhhh............. hmm.

12. anonymous

k got it :P

13. anonymous

14. anonymous

:D

15. anonymous

area = pi * r^2 = pi(2) than divide by the angle/360 THAN add on the additional triangle :P

16. anonymous

that took some time OTL

17. anonymous

good? or ...?

18. anonymous

Wait jsut checking it

19. anonymous

idk I am not sure

20. anonymous

ok drawing time :P 1 min

21. anonymous

22. anonymous

that was a innovative problem. thanks :)

23. anonymous

LOL Thanks that was a great drawing :DD

24. anonymous

thanks, i'm so good at drawing :P