1)
A) Write v as a linear combination ofu1, u2, andu3, if possible. (Enter your answer interms of u1,u2, and u3.If not possible, enter IMPOSSIBLE.)
v = (?1, 7, 2), u1= (2, 1, 5), u2 = (2, ?3, 1),u3 = (?2, 3, ?1)
B) Write v as a linear combination ofu and w, if possible, whereu = (1, 3) and w = (2, ?1).(Enter your answer in terms of u andw. If not possible, enter IMPOSSIBLE.)
v = (?3, ?9)
C) Find w such that 2u +v ? 3w = 0.
u = (0, 0, ?6, 2),
v = (0, ?3, 5, 1)
