Find a nontrivial linear combination for =(0,0) u=(0,0) using the various sets {v1, v2, ...}, if possible. If a solution is possible, then write u as a linear combination of the vectors in the given set.
a) {(1,0) ,(0,1) /(1,0) ,(0,1) }
b) {(1,1) ,(−1,−1) /(1,1) ,(−1,−1) }
c) {(2,3) ,(−4,−6) /(2,3) ,(−4,−6) }
d) {(0,1) ,(1,0) /(0,1) ,(1,0) }