- #1
MasterWu77
- 21
- 0
Homework Statement
[tex]\int[/tex][tex]\int[/tex] of R ( sin( x^2 + y^2) ) dA where the region 4[tex]\leq[/tex] x^2+y^2 [tex]\leq[/tex] 49
Homework Equations
not too sure but i know that dy dx = r d(r) d(theta)
The Attempt at a Solution
i don't understand how to change into polar coordinates in order to integrate. I'm unsure of how the 4[tex]\leq[/tex] x^2+y^2 [tex]\leq[/tex] 49 becomes the r i need to integrate with. and if i do get that then how do i change the other bounds of integrate for the d (theta)