Statement I If a=3i^−3j^+k^ , b=−i^+2j^+k^ and c=i^+j^+k^ and d=2i^−j^ , then there exist real numbers α,β,γ such that a=αb+βc+γdStatement IIa,b,c,d are four vectors in a 3-dimensional space. If b,c,d are non-coplanar, then there exist real numbers α,β,γ such that a=αb+βc+γd .