Question

Let the angle between two nonzero vectors A and B be 120° and its resultant be C.
(a) C must be equal to I A —B I
(b) C must be less than I A —B
(c) C must be greater than I A —B I
(d) C may be equal to I A —B|.

Answer 1

(c) C must be greater than I A —B I