if x+y+z=0, then (x+y) (y+z) (z+x) is equal to which of the following
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give the all question then i will give your anser
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Step-by-step explanation:
x+y+z= 0
then x+y= -z ...........i
or, y+z= -x ...........ii
or, z+x = -y ..........iii
put the value of all equation (i, ii, and iii)
in (x+y)(y+z)(z+x), we get
=(-z)(-x)(-y) = (-xyz)
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