Linear Algebra - Joshua - Saint Michael`s College
... 1.1 Definition A linear combination of x1 , . . . , xn has the form a1 x1 + a2 x2 + a3 x3 + · · · + an xn where the numbers a1 , . . . , an ∈ R are the combination’s coefficients. A linear equation in the variables x1 , . . . , xn has the form a1 x1 + a2 x2 + a3 x3 + · · · + an xn = d where d ∈ R is ...
... 1.1 Definition A linear combination of x1 , . . . , xn has the form a1 x1 + a2 x2 + a3 x3 + · · · + an xn where the numbers a1 , . . . , an ∈ R are the combination’s coefficients. A linear equation in the variables x1 , . . . , xn has the form a1 x1 + a2 x2 + a3 x3 + · · · + an xn = d where d ∈ R is ...
