Find the value of x y z if x^2 y^2 z^2=18 and xy yz zx=9
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Answer:
(x+y+z)^2=(x^2+y^2+z^2+xy+xz+yz)
(x+y+z)^2=(18+9)
x+y+z=root27
x+y+z=3root3
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