If alpha,beta,gamma are direction angles...

If `alpha,beta,gamma` are direction angles of a line, then

A

(a) `0lealpha,beta,gammale(pi)/(2)`

B

(b) `0lealpha,beta,gammalepi`

C

(c) `0ltalpha,beta,gammalt(pi)/(2)`

D

(d) `0ltalpha,beta,gammaltpi`

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The correct Answer is:

B

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