✨ Best Answer ✨
求める値をxyzで通分すると
(与式)=(x^2+y^2+z^2)/xyz
={(x+y+z)^2−2(xy+yz+zx)}/xyz
=−2x(−10)/4√3
=5/√3
=5√3/3 ...答
✨ Best Answer ✨
求める値をxyzで通分すると
(与式)=(x^2+y^2+z^2)/xyz
={(x+y+z)^2−2(xy+yz+zx)}/xyz
=−2x(−10)/4√3
=5/√3
=5√3/3 ...答
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