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4'\" edition 1.3 #5: Write a system of equations that is equivalent to the given vector equation. xllizlzlirlial 4'\" edition 1.3 #11: Determine if b is a linear combination of a1, a2 and a3. ..-(_;2),.-(g).-(;.),.._.(_;.) 4'\" edition 1.3 #13: Determine if b is a linear combination of the column vectors of the matrix A. 1 4 2 3 A=(o 3 5),b=(_7) 2 3 4 3 4'\" edition 1.3 #17: List five vectors in Span{v1, 172}. For each vector, show the weights on 171 and 172 used to generate the vector. Do not make a sketch. 1.13.434) 4\"" edition 1.3 #21: Let u = (31) and v = (E) Show that (2) is in span{u, v} for all choices of the numbers I: and k. ,1 -11