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S_A_V [24]
3 years ago
8

Find the area of the shaded region: r=sqrt(theta) theta between 0 and -3pi/2

Mathematics
2 answers:
dalvyx [7]3 years ago
6 0
The equation r = square root of theta can be translated into a semi-circle through the simplification to r^2 = theta. When theta is 0, r is zero. When r is -3pi/2, r2 is equal to 9/4 pi^2. The area of the semi-circle is equal to pi r^2 /2. Hence the area is equal to 34.88 units^2
marusya05 [52]3 years ago
5 0

Answer:

1.519\pi

Step-by-step explanation:

For any polar curve area of the region under the curve

\frac{1}{2} \int\limits^a_b {r^2} \, dt

Here r is given as

r=\theta \sqrt{\theta}

Hence area would be

\frac{1}{2} \int\limits^0_\frac{-3\pi}{2}  {theta}^{\frac{3}{2} }  \, d\theta \\=\frac{1}{2} \frac{2}{5}  {theta}^{\frac{5}{2} }

==0.2(\frac{3\pi}{2} )^5\\=1.519\pi

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