need some help (again)

double integral on D [(1-(x^2+y^2)]dx dy, on D:{x^2+y^2 =1 & y0 }

compute the area of the surface x^2+y^2+z^2=R^2, z0 inside x^2+y^2 less or equal to R.y
i would appreciate it if someone helped me
with this questions
if you can draw some graphs that would be great
and thanks to phi and SithsAndGiggles for helping me earlier

Question

need some help (again)

double integral on D [(1-(x^2+y^2)]dx dy, on D:{x^2+y^2 =1  & y>0 }

compute the area of the surface x^2+y^2+z^2=R^2, z>0 inside x^2+y^2 less or equal to R.y
i would appreciate it if someone helped me
with this questions
if you can draw some graphs that would be great
and thanks to phi and SithsAndGiggles for helping me earlier

experimentx · Answer

looks like you posted two question ...

experimentx · Answer

write your question properly ... use latex http://www.codecogs.com/latex/eqneditor.php

anonymous · Answer

ok i will

anonymous · Answer

is it against the rules to post twice?

experimentx · Answer

No ... just post it here. you seem to ask two questions. it wasn't clear enough to me.

anonymous · Answer

alright i am using that site to make it clear just a sec

anonymous · Answer

experimentx · Answer

I am not getting your point, what do you want to evaluate?
do you want to evaluate this

$$ \iint_s (1 -x^2 -y^2) dx dy  $$
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