Hans Juergen Weber, Frank Ephraim Harris, George Brown Arfken, Mathematical Methods for Physicists; A Comprehensive Guide, 7th edition (Academic Press, 2012)

Chapter 2. Determinants and Matrices 제2장. 행렬식과 행렬

Section 1. Determinants 제1절. 행렬식

예제(Exercise) 3 및 해설(Solution)

Given the pair of equations

x + 2y = 3,    2x + 4y = 6,

(a) Show that the determinant of the coefficients vanishes.

(b) Show that the numerator determinants, see Eq. (2.18), also vanish.

(c) Find at least two solutions.

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