Let \[-1\le x\le 1.\] If \[\cos (si{{n}^{-1}}x)=\frac{1}{2},\] then how many value does \[\tan (co{{s}^{-1}}x)\] assume?

Let \[-1\le x\le 1.\] If \[\cos (si{{n}^{-1}}x)=\frac{1}{2},\] then ho

1.	Let \[-1\le x\le 1.\] If \[\cos (si{{n}^{-1}}x)=\frac{1}{2},\] then how many value does \[\tan (co{{s}^{-1}}x)\] assume?
A.	One
B.	Two
C.	Four
D.	Infinite
Answer» C. Four

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Let \[-1\le x\le 1.\] If \[\cos (si{{n}^{-1}}x)=\frac{1}{2},\] then how many value does \[\tan (co{{s}^{-1}}x)\] assume?

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