A) \[\frac{\pi }{2}\]
B) \[\pi \]
C) 0
D) \[\frac{\pi }{4}\]
Correct Answer: B
Solution :
Clearly \[\vec{a}\] and \[\vec{c}\] are anti parallel. \[\therefore \] Angle between \[\vec{a}\] and \[\vec{c}\] is \[\pi \].You need to login to perform this action.
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