Mathematics, 15.07.2019 16:30 maxy7347go
Using polar coordinates, evaluate the integral ∫∫rsin(x2+y2)da where r is the region 16≤x2+y2≤49
Answers: 1
where :
.By using the polar coordinates : 
we get : 
and :
, then : 
so we get :![I = 2\pi\int_4^7\frac12\sin u du=\pi\times \left[\cos u\right]_4^7=\pi(\cos7-\cos4)](/tpl/images/0093/1377/77871.png)
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Using polar coordinates, evaluate the integral ∫∫rsin(x2+y2)da where r is the region 16≤x2+y2≤49...
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