2. (а) ở and w are vectors in R? such that f(0) = w. Express f(27 – 3w) as a linear combination of i and i: that is, find real numbers a and ß such that f(27 – 3w) (b) (c) column of A consists entirely of zeros. What is A? The function f : R² → R² is a reflection about a line through the origin, and að + Bu. Find a real 2 × 2 matrix A such that A?u = -40 for all vectors i E R?. A 2 x 3 matrix A is in reduced row-echelon form, has rank 2, and the middle

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