Find the area of the surface formed by revolving
Find the area of the surface formed by revolving the portion of the curve r = 1 + cos θ in the first quadrant about (a) the x axis, (b) the y axis .[The identity 1+ cos θ = 2 cos² (θ/2) may help in (b).]
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To earn full credit, show how you solved the problem by using correct mathematical symbols and by explaining thoroughly in words each step.
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