Find the surface area of revolution about the x-axis of y = 5 sin(6x) over the interval 0 < x < 20.5616

Q: Find the exact area inside the curve defined by r = 2 + 3 sin 0 and outside the circle r = 2.

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Q: Find the surface area of the object obtained by rotating y = sin(2x) , 0<x< about the x-axis.

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Q: Find the area between the curve y=(x-2)(x+3)(4-x) and the x-axis from x = -1 to x = 3.

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Q: Determine area under curves y = x2 + 3 and y = 7 - 3x. Show with sketch

A: Topic = Application of integration