Mathematics, 02.07.2021 23:40 kenzierosa

Cho một vật dao động điều hoà với phương trình: x=2cos(4nt+ⁿ/3) (cm) a) tìm thời điểm lần thứ nhất vật qua vị trí toạ độ x=-1cm

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Cho một vật dao động điều hoà với phương trình: x=2cos(4nt+ⁿ/3) (cm) a) tìm thời điểm lần thứ nhất v...

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