In Problems 23 and 24, find a + (b + c) for the given vectors. 24. a = (1, 1), b = (4, 3), c = (0, -2)

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In Problems 23 and 24, find a + (b + c) for the given vectors.
24. a = (1, 1), b = (4, 3), c = (0, −2)
In Problems 25-28, find a unit vector (a) in the same direction
as a, and (b) in the opposite direction of a.
26. a = (-3, 4)
2i + 3j as a
In Problems and 42, express the vector a =
linear combination of the given vectors b and c.
42. b = −2i + 4j, c = 5i + 7j
Transcribed Image Text:In Problems 23 and 24, find a + (b + c) for the given vectors. 24. a = (1, 1), b = (4, 3), c = (0, −2) In Problems 25-28, find a unit vector (a) in the same direction as a, and (b) in the opposite direction of a. 26. a = (-3, 4) 2i + 3j as a In Problems and 42, express the vector a = linear combination of the given vectors b and c. 42. b = −2i + 4j, c = 5i + 7j
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