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strojnjashka [21]
3 years ago
15

Sketch the polar curves r = 6 sin θ and r = 2+ 2 sin θ, then set up an integral that represents the area inside r = 6 sin θ and

outside r = 2 + 2 sin θ. Do not evaluate your integral.
Mathematics
1 answer:
patriot [66]3 years ago
4 0

Answer:

Step-by-step explanation:

Given are two polar curves as r = 6 sin θ and r = 2+ 2 sin θ

Let us find the point/s of intersection

Eliminate r to get

6 sin θ = 2+ 2 sin θ\\sin\theta = 0.5\\\theta = 30, 150

r=6sin 30 = 3

Thus we find that area outside II curve and inside first curve would be

\int {\frac{r^2}{2} } \, d\theta \\ =\int{\frac{36sin^2 \theta - (2+2sin\theta)^2 }{2} } \, d\theta where lower limit is 30 degrees and 150 degrees.

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