[線代] 聯立方程組問題

[wayne0824 (萊恩)]

各位版友好，請教一題線代

(True or False)

Let A,B be two mxn matrices. If both Ax=0 and Bx=0 have nontrivial
solutions, then (A+B)x=0 has nontrivial solutions.

麻煩各位了><

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