Trang Ánh Nam has left a new comment on your post "CÁC HỆ THỨC LƯỢNG TRONG TAM GIÁC VÀ GIẢI TAM GIÁC":
Bài 35: Giải tam giác biết:
a. a=109; góc B=33'24 độ; góc C=66'59 độ.
b. a=20, b=13, góc A=67'23 độ
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Posted by Trang Ánh Nam to Học Để Thi at February 21, 2019 at 10:45 PM
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