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Question

Mathematics Question on Three Dimensional Geometry

The angle between the lines, whose direction cosines are proportional to 4,√3-1,-√3-1 and 4,-√3-1,√3-1, is

A

π6\frac{\pi}{6}

B

π4\frac{\pi}{4}

C

π3\frac{\pi}{3}

D

π2\frac{\pi}{2}

E

π

Answer

π3\frac{\pi}{3}

Explanation

Solution

The correct option is (C): π3\frac{\pi}{3}