x-rcos-cos-y-rsin-sin-z-sin-then-prove-that-x-2-y-2-z-2-r-2-

Question Number 20616 by virus last updated on 29/Aug/17

x = r \cos θ \cos \emptyset, y = r \sin θ \sin \emptyset, z = \sin θ

t h e n p r o v e t h a t x^{2} + y^{2} + z^{2} = r^{2}

Commented by virus last updated on 01/Sep/17

p l e a s e s o l v e t h i s

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