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shinc20010405
2 năm trước
Một đồng hồ có kim dài 10cm. Điểm M nằm ở đâu mũi kim phút a) Tính tốc độ góc và tốc độ dài của điểm M b) Tính quãng đường mà điểm M đi được sau 15 phút GIÚP MÌNH VỚI, HỨA ĐÁNH GIÁ 5 SAO
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