so embarrassed that this is my second thread and in both i'm asking for basic help.
i have taken calc 1 but i have not retained the material very well. i'm now in a class that asks us to solve problems using software and i'm a mess.
i wish i could contribute by helping people here, but i am not very advanced at all [EDIT TO ADD: I did finally find some posts to answer, so I feel better ! ]
the problem is as follows:
Find the volume of the solid that is created by evaluating the function cos(x) from –π/2 to π/2 and then rotating the figure about the y axis.
now to show effort towards a solution:
i believe that this would be a cylinder, and possibly dy instead of dx as it rotates around the y axis. the way i'd imagine it is by
π *(integral of x= cos y) from –π/2 to π/2 which comes out to 2π
am i on the right track?
thanks in advance for any hints!