huonghoa

1. Find the volume o f a cap o f a sphere with radius r and height H.

2. Find the global ma xium and the global minimum values o f f(x,y) = 1+4x-5y closed triangular region with vertices (0,0), (2,0), (0,3).

3. Find the area o f a region bounded by củves 4x+y^2, x=y.

Thank you very much, please forgive me i f I (po st) at the wrong forum, and please tell me where to po st i f you know any helping forum.

HH