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6 Nov 2019
Solve the following general system by inverting the coefficient matrix and using the following theorem: If A is an invertible n x n matrix, then for each n x 1 matrix b, the system of equations Ax = b has exactly one solution, namely, x = A-1b. x1 + 2x2 + x3 = b1 x1 - x2 + x3 = b2 x1 + x2 = b3 Use the resulting formulas to find the solution if b1 = -9, b2 = 6, b3 = 7 x1 = x2 = x3 = Show transcribed image text
Solve the following general system by inverting the coefficient matrix and using the following theorem: If A is an invertible n x n matrix, then for each n x 1 matrix b, the system of equations Ax = b has exactly one solution, namely, x = A-1b. x1 + 2x2 + x3 = b1 x1 - x2 + x3 = b2 x1 + x2 = b3 Use the resulting formulas to find the solution if b1 = -9, b2 = 6, b3 = 7 x1 = x2 = x3 =
Show transcribed image text Bunny GreenfelderLv2
11 Jul 2019