78. Find the sum of the coefficients when we write the vector (-1,2,0) as the linearcombination of t
問題詳情
78. Find the sum of the coefficients when we write the vector (-1,2,0) as the linearcombination of three vectors (2,1,5), (-1,1,3) and (3,1,9). (A) 2 (B) 3 (C) 5 (D) 7