Question

Find the areas of the surfaces generated by revolving the curves in Exercises 13–23 about the indicated axes. If you have a grapher, you may want to graph these curves to see what they look like.

21. x = (ey + e*)/2, 0 = y = In 2; y-axis X ete y 2 In 2 0 1

*Please show all work

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Answer #1

2. ds= 11)dy - 21 soods ( toy)- -y) dy Inz ete te-y rey .dy. 4te tey 공 다 ME 20t0 422 e 2 t t 2 dy 다. In 2 ette e29 -29 t 2.

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