if X+Y+Z=6 and xy+yz+zx=11 find x^2+y^2+z^2
Answers
Answered by
1
Answer:
14 is your answer dear
Step-by-step explanation:
if you need explanation than you can tell me
Answered by
1
Answer:
14
Step-by-step explanation:
(x +y+z)^2 = x²+y²+z² +2 (xy + yz + zx)
6² = x²+ y²+ z² + 22
36-22 = x²+ y²+z²
x²+y²+z² = 14
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