Question: Find the angle between a and b and make a sketch. a. a = 12i, b = -5i b. a = 4i + 3j. b

Find the angle between a and b and make a sketch.
a. a = 12i, b = -5i
b. a = 4i + 3j. b = -8i - 6j
c. a = + 3j, b = 2i - 6j
d. a = √3j + j, b = 3i + √3j

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