A) 1
B) \[-\,1\]
C) 0
D) \[\frac{1}{2}\]
Correct Answer: B
Solution :
Given that, \[x+\frac{1}{x}=1\] Or \[xy+1=\gamma \] ? (i) And \[\gamma +\frac{1}{z}=\gamma z+1=z\] ? (ii) From Eq. (ii), \[\gamma =\frac{z-1}{z}\] On putting this value in Eq. (i), we get \[xy+1=\frac{z-1}{z}\] Or \[xy+z=z-1\] Or \[xyz=-\,1\]You need to login to perform this action.
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