Question

If x² + y² + z^2=r^2
, show that maximum
Value
of xy + yz + zx is r^2 and
the minimum value is - 1/r^2​

Answer 1

Answer:

If x² + y² + z^2=r^2

, show that maximum

Value

of xy + yz + zx is r^2 and

the minimum value is - 1/r^2