Cho ánh xạ tuyến tính f có ma trận biểu diễn là
A =
1 −4 15
−1 −22 20
1 −25 22
theo cơ sở a1 = (8, −6, 7), a2 = (−16, 7, −13) và a3 = (9, −3, 7). Tìm ma
trận của f theo cơ sở
b1 = (1, −2, 1); b2 = (3, −1, 2); b3 = (2, 1, 2)
The answer is harsh laws are needed to control the society
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