- #1
hytuoc
- 26
- 0
Plz help me integrating the integral below...I did it to a certain point and got stuck...here is the integral and what I did:
1)
Integral form 0 to pi/2, integral from 0 to a*sin(2*theta), [ r ]dr dtheta
Inner integral: Int from 0 to a*sin(2theta) [(r^2)/2] dr = [a^2 * (sin(2 theta))^2 ] / 2
Outer integral: Int from 0 to pi/2 [a^2 * (sin(2 theta))^2 ] / 2] dtheta
...this is when I don't know how to integrate...please show me!
2)
Integral from 0 to pi/2, integral from 0 to 1 [sin(r^2)]dr dtheta...how do I integrate this? (how do I integrate sin(r^2)?)
Thanks
1)
Integral form 0 to pi/2, integral from 0 to a*sin(2*theta), [ r ]dr dtheta
Inner integral: Int from 0 to a*sin(2theta) [(r^2)/2] dr = [a^2 * (sin(2 theta))^2 ] / 2
Outer integral: Int from 0 to pi/2 [a^2 * (sin(2 theta))^2 ] / 2] dtheta
...this is when I don't know how to integrate...please show me!
2)
Integral from 0 to pi/2, integral from 0 to 1 [sin(r^2)]dr dtheta...how do I integrate this? (how do I integrate sin(r^2)?)
Thanks