Two vectors are given by a 4.0 m 3.0 m ) + (1.0 m ) and b = ( -1.0 m )i + (1.0 m )j + (4.0 m )k. k. In unit-vector notation, find (a) a + b, (b) ab, and (c) a third vector such that a b + c = 0. (a) Number (b) Number (c) Number i + + <·~ + + <•+ <•+ i i i k Units k Units k Units
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