Thread: volume tricky problems

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i need helping figuring out the work behind this to get the required answer. the correct answer is given. ive been at these problems for a couple hours now. plz help

Originally Posted by ahawk1

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i need helping figuring out the work behind this to get the required answer. the correct answer is given. ive been at these problems for a couple hours now. plz help

I'd do it by translating the curve (and therefore the region) 1 unit to the left and then rotating around the y-axis .....