Q 1411734629.     Can a vector have direction angles `45^{ circ}, 60^{ circ}, 120^{ circ}`?

A

Yes, A vector can have `45^{ circ}, 60^{ circ}, 120^{ circ}` as direction angles

B

No, A vector cannot have `45^{ circ}, 60^{ circ}, 120^{ circ}` as direction angles.

C

can't determine

D

None of these

HINT

If `l, m , n` are the d.c.s of a vector, then `l^2+m^2+n^2=1`

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