If the direction cosines of the line are ( frac{1}{2},- frac{ sqrt{3} – McqOptions

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1.	If the direction cosines of the line are ( frac{1}{2},- frac{ sqrt{3}}{2} ),x respectively, then find the value of x.
A.	1
B.	0
C.	( frac{ sqrt{3}}{2} )
D.	( frac{1}{2} )
Answer» C. ( frac{ sqrt{3}}{2} )

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