In a four dimensional space, where unit vectors along the axes are ^i,^j,^k and ^l,→a1,→a2,→a3,→a4 are four non-zero vectors such that no vector can be expressed as a linear combination of others and (λ−1)(→a1−→a2)+α(→a2+→a3)+γ(→a3+→a4−2→a2)+→a3+δ→a4=→0.
Then which of the following is/are correct?