MediumLinear systems

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.4 Matrices and Linear Equations, #26 · Linear Algebra · Linear systems

The equations …, … have the solution

The equations $a x + b y = 0$ , $c x + d y = 0$ have the solution $x = y = 0$ . There are other solutions if the two lines are ______. This happens if $a, b, c, d$ satisfy ______.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.4 Matrices and Linear Equations, #26

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