Hi all,

would anyone be able to give me a little bit of help with this question.

for part (a) i did this....

our sphere is given by

putting in z = 3 to find out part of the sphere gives:

so we change to the parametric representation of the part of the sphere we are interested in sphere which is

then

does this look like i am heading in the right direction for part (a)?

cheers!

-Sarah