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Mathematics, 18.06.2021 17:50 prelogical

Cho u⃗ =2i⃗ +7j⃗ +k⃗ và v⃗ =3j⃗ −k⃗ . Thực hiện phép tính

u⃗ ×v⃗ =

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Cho u⃗ =2i⃗ +7j⃗ +k⃗ và v⃗ =3j⃗ −k⃗ . Thực hiện phép tính

u⃗ ×v⃗ =...

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