Math, asked by nhu58614, 7 days ago

Cho tam giác ABC có AB=2,BC=4,CA=3
Tính vecto AB.AC, rồi suy ra cosA
Gọi G là trọng tâm của tam giác ABC. tính vecto AG.BC

Answers

Answered by inshaqurashi9

0

answer of 2.7 is 19 .683 how

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