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

Toán Lớp 9: cho (O;R) duong kinh AB lay M thuoc (O) tren cung 1 nua mat phang bo AB chua diem M ke Ax va By vuong goc AB.Qua M ke duong thang vuong

Toán Lớp 9: cho (O;R) duong kinh AB lay M thuoc (O) tren cung 1 nua mat phang bo AB chua diem M ke Ax va By vuong goc AB.Qua M ke duong thang vuong goc OM cat Ax tai C cat By tai D. Cmr: a)AM//OD b)AM cat OC tai E , BM cat OD tai F CMR:MEOF la hinh chu nhat c)OE.OC=OF.OD

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  1. Đáp án:
     
    Giải thích các bước giải:
     

    toan-lop-9-cho-o-r-duong-kinh-ab-lay-m-thuoc-o-tren-cung-1-nua-mat-phang-bo-ab-chua-diem-m-ke-a

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

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