graph function is, y=cos-1(x), [-1,1]
Need to find the exact volume of the solid revolution formed if the graph is rotated around the y axis.
The range is [0,pi]
I get to the point where it is:
pi X integ[(cos
)^2 dy] with terminals of pi and 0
i dont know where to go from there
i believe some sort of double angle formula is needed but i cant seem to do it.
Thanks
Iceman, you are completely correct, but how did you get the integral?
Need to find the exact volume of the solid revolution formed if the graph is rotated around the y axis.
The range is [0,pi]
I get to the point where it is:
pi X integ[(cos
)^2 dy] with terminals of pi and 0i dont know where to go from there
i believe some sort of double angle formula is needed but i cant seem to do it.
Thanks
Iceman, you are completely correct, but how did you get the integral?