Hello guys the problems is to determine the area of y = 2 Sqrt X when it is rotaded about the y axis, you can see my progress in my uploaded paper.
I would need some help finishing it.
see uploaded paper:
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integrate Sqrt[x^2 + x] - Wolfram|Alpha
Click on Show steps.
But the above is pointless since you are not using the correct formula for finding the surface (should be dx/dy NOT dy/dx inside the square root).