Question

1. Which of the following sets are linear spaces? a) {X = (x1,x2,x3) in R 3 with the property x1 − 2x3 = 0} b) The set of solutions x of Ax = 0, where A is an m × n matrix. c) The set of 2 × 2 matrices A with det(A) = 0. d) The set of polynomials p(x) with R 1 −1 p(x) dx = 0. e) The set of solutions y = y(t) of y ′′ + 4y ′ + y = 0.

Answer 1

Answer:

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Step-by-step explanation:

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