Math, asked by haroon5389, 10 months ago

If x, y, z are real and distinct, then
x² + 4 y² + 9 z² - 6 yz - 3 zx - 2 xy is always
(a) non-negative (b) non-positive
(c) zero (d) none of these

Answers

Answered by yash4057

0

I think non negative is ans

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