Question

if x = PcosAsinB, y = pcosAcosB and z=pSinA. Show that x^2+y^2+z^2 = ?

Answer 1

Answer:

X^2 +y^2 =p^2 [cos^2 A] [sin^2 A+cos^2 A]

=p^2 cos^2 A

x ^2 +y^2 +z^2 =p^2 [cos^2 A+sin^2 A] =p^2