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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 9: nếu sin a = 12/13 thì tan a bằng

Tháng Ba 11, 2023 Toán học 1 Comment 0 views

Toán Lớp 9: nếu sin a = 12/13 thì tan a bằng

Comments ( 1 )

  1. thuminhthong
    thuminhthong
    11 Tháng Ba, 2023 at 9:05 sáng
    Reply
    sin a = 12/13
    => a ~~ 67,4^@
    => tana = tan 67,4 ~~ 2,4^@ 

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222-9+11+12:2*14+14 = ? ( )

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