Exam (elaborations)
Exam (elaborations) TEST BANK FOR Linear Algebra with Applications 5th Edition By Otto Bretscher (Solution Manual)-Converted
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Section 1.1 1.1.1 x + 2y = 1 2x + 3y = 1 −2 × 1st equation → x + 2y = 1 −y = −1 ÷(−1) → x + 2y = 1 y = 1 −2 × 2nd equation → x = −1 y = 1 , so that (x, y) = (−1, 1). 1.1.2 4x + 3y = 2 7x + 5y = 3 ÷4 → x + 3 4y = 1 2 7...
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