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2 years ago

7

một máy bay đang bay ở độ cao 1700m.Từ đài quan sát người ta nhìn thấy máy bay dưới 1 góc 25° so với mặt đất.Tính khoảng cách từ

đài quan sát đến máy bay

1 answer:

viktelen [127]2 years ago

7 0

Dùng cos tính ra, = 1875,7m

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