verify if x+y+z=0 the prove x2 + y2 + z2 =3xyz
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Step-by-step explanation:
Given: x+y+z=0
To prove:x^2+y^2+z^2=3xyz
Proof : Apply the algebraic identity x^2+y^2+z^2-3xyz=(x+y+z) (x2 + y2 + z2 – xy – yz – zx).
= 0× (x2 + y2 + z2 – xy – yz – zx).
Therefore, x2+y2+z2-3xyz = 0
Therefore, x2+y2+z2=3xyz (transpositioning -3zyx to R.h.s hence became 3xyz)
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