題組內容
1. (30%) True or False. In each case, answer T if the statement is always true and F otherwise.
(a) If A and B are nonsingular n x n matrices, then A + B is also nonsingular and (A + B)⁻¹ = A⁻¹ + B⁻¹.
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1. (30%) True or False. In each case, answer T if the statement is always true and F otherwise.
(a) If A and B are nonsingular n x n matrices, then A + B is also nonsingular and (A + B)⁻¹ = A⁻¹ + B⁻¹.