nguyenthuphuong10042 nguyenthuphuong10042

01-07-2024
Mathematics

Answered

Cho Tam giác ABC đều cạnh là a có đường cao AH
a,Tính độ dài các đoạn thẳng BH và AH và góc BAH
b, Tính các tỉ số lượng giác của góc BHA và góc B

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