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Mathematics, 16.06.2021 17:30 TheSmartRey
Cho ánh xạ tuyến tính f: R^3 ->R^3 và hai cơ sở của R^3: B={b1=(1,3,3); b2=(-5,6,5); b3=(1,2,2)} C={c1=(2,-2,3); c2=(-5,-1,-5),c3= (1,0,1)} Biết f(b1)=(-5,6,4), f(b2)=(-8,5,2), f(b3)=(-9,-2,-5) a. Tìm ma trận A=[f]E3, từ đó suy ra biểu thức của f(x1,x2,x3) b. Tìm ma trận [f]B
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Cho ánh xạ tuyến tính f: R^3 ->R^3 và hai cơ sở của R^3: B={b1=(1,3,3); b2=(-5,6,5); b3=(1,2,2)}...
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