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Mathematics, 15.06.2021 20:10 cat706

Cho ánh xạ tuyến tính ƒ:R^3—›R^3 và hai cơ sở của R^3 B={b1=(1,3,3),b2=(—7,6,5),b3=(1,2,2 )}, C={c1=(2,-4,3),c2=( -5,-1,-5),c3=(1,0,1)}
Biết f(b1)=(—5,6,4), f(b2)=(-8,5,2), f(b3)=(-9,-2,6)5)
a. Tìm mạ trận A =[f]E3 , từ đó suy ra biểu của f(x1,x1,x3)
b. Tìm ma trận [f]B
c. Từ [f]B, hãy tính ma trận [f]C/B
d. Cho vector z =(-2,3,7), hay tính [x]B, và suy ra [f(x)]c

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Cho ánh xạ tuyến tính ƒ:R^3—›R^3 và hai cơ sở của R^3 B={b1=(1,3,3),b2=(—7,6,5),b3=(1,2,2 )}, C={c...
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