Question

if x=rsinAcosC ,y=rsinAsinC and z=rcosA,prove that
${r }^{2} = {x }^{2} + {y }^{2} + {z}^{2}$

Answer 1

hope this helps you☺️☺️

Answer 2

see your answer in attached pic...

Glad help you,
hope it helps,
thank you
@vaibhav246