CHỌN KHẲNG ĐỊNH SAI TRONG CÁC KHẲNG ĐỊNH SAU

HE THONG DE KIEM TRA TRAC NGHIEM 15 HINH HOC 10 CBDOC

 

^{BA BC}^,

  BCAC AB

OA OC OB OD      ⁰

^{HA HB HC}^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^ ^⁰