Question

Define area of parametric surface and find the area of the hemisphere $x^{2} +y^{2} +z^{2} =a^{2} ,z\geq 0$.

Answer 1

Define area of parametric surface and find the area of the hemisphere x^{2} +y^{2} +z^{2} =a^{2} ,z\geq  0.

Answer 2

Answer:

Parametrize the part of the sphere x2 + y2 + z2 = 16,−2 ≤ z ≤ 2 using the spherical co- ordinates.