Mathematics
มัธยมปลาย
求解？？
al
厉
SASTO
4
△ABC 中,已知 cos A =
5.
4
√26
, tan B=二 ,且△ABC之外接圓半徑為√130,則B的長度為
2
คำตอบ
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求解？？
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ก็จะเจอคำถามเหล่านี้ด้วย😉
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