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Q: if (x2/yz) + (y2/xz) + (z2/xy) = 3. Find x + y + z.
A. 0 B. 1
C. 2 D. 3

Answer and Explanation

Answer:0

Explanation:
Multiplying both sides with by xyz,we get
X + y+z = 3xyz
=> X3 + y3 + z3 - 3xyz = 0
=> ∴ (x + y + z)(x2+y2+z2 – xy – yz - xz) = 0

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