For what values of x is the equation \[2\,sin\,\theta =x+\frac{1}{x}\]

1.	For what values of x is the equation \[2\,sin\,\theta =x+\frac{1}{x}\]valid?
A.	\[x=\pm 1\]
B.	All real values of x
C.	\[-1<x<1\]
D.	\[x>1\]and \[x<-1\]
Answer» B. All real values of x

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For what values of x is the equation \[2\,sin\,\theta =x+\frac{1}{x}\]valid?

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