Question

If x=r sin A cosA.,y= b r sinA sin B ,and z= c r cos A Then P.T
$\frac{x {}^{2} }{a { }^{2} + \frac{y }^{2} }{ \frac{b }^{2} + \frac{z }^{2} } \frac{c }^{2} } {r }^{2}$
​

Answer 1

Answer:

fallow me

Step-by-step explanation:

then i send you answer