If \[\frac{x}{\cos \theta }=\frac{y}{\cos \left( \theta -\frac{2\pi }{ – McqOptions

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1.	If \[\frac{x}{\cos \theta }=\frac{y}{\cos \left( \theta -\frac{2\pi }{3} \right)}=\frac{z}{\cos \left( \theta +\frac{2\pi }{3} \right)},\]then \[x+y+z=\]
A.	\[1\]
B.	\[0\]
C.	\[-1\]
D.	None of these
Answer» C. \[-1\]

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