Let A be a 3 × 3 matrix and let x1, x2, x3 be vectors in R3. Show that if the vectors y1 = Ax1, y2 = Ax2, y3 = Ax3 are linearly independent, then the matrix A must be nonsingular and the vectors x1, x2, and x3 must be linearly independent.

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A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Linear Algebra

In mathematics, problems can be solved by the arithmetic operators like addition, subtraction, multiplication, and division. In algebra, we represent the numbers by any letter called a variable. If these variables are of degree 1, then it is studied under linear algebra. The first-degree equations involving algebraic expressions are called linear equations. That is, if you represent it by drawing a graph you will get a straight line.