Mathematics, 25.10.2021 20:10 dontcareanyonemo

Cho tam giác ABC vuông tại A biết cos B =4/5 hãy tính các tỉ lượng giác của góc C

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Cho tam giác ABC vuông tại A biết cos B =4/5 hãy tính các tỉ lượng giác của góc C...

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