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Mathematics 7 Online
OpenStudy (anonymous):

Find the area of the surface obtained by rotating the curve y=1+ 1/2x^2 1<=x<=2 about the y axis. Any ideas?

OpenStudy (irishboy123):

is that \[y=1+ \frac{1}{2} x^2 \]

OpenStudy (anonymous):

yes

OpenStudy (irishboy123):

|dw:1430355636517:dw| is this how you see it?

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