1. Vector x=(1,1). Basis = b1=(2,-4), b2=(3,8):
Answer: Coordinate vector = (5/28,3/14).
2. Vector x=(2,-1,3). Basis b1=(1,0,0), b2=(2,2,0), b3=(3,3,3).
Answer: Coordinate vector = (3,-2,1).
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