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Question

If x=yz,y=zx and z=xy, then

A
xyz=1
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B
xyz=1
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C
x+y+z=1
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D
xz=y
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Solution

The correct option is A xyz=1
z=xy=(yz)y ...(x=yz)
=yzy=(zx)zy=zxyz ...(y=zx)
z1=zxyz
xyz=1

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