Why is it called a polar rectangle? Choose the correct answer below 0 A. It is a

Question

Why is it called a polar rectangle? Choose the correct answer below 0 A. It is a polar rectangle because it is two concentric circles. B. It is a polar rectangle because it looks like a rectangle. C. It is a polar rectangle because it is defined by only r and 0. D. It is a polar rectangle because r and 0 vary between constants. What coordinate system is suggested if the integrand of a triple integral involves x2+y2? Choose the correct answer below O A. Spherical coordinates O C. Rectangular coordinates 20 Cylindrical coordinates

Explanation / Answer

Answer is cylindrical coordinates. In cylindrical coordinates we can easily write x^2+y^2 as r^2. So we can integrate it easily.

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