... ) 5 3,,0baababạ c) 5 3222 d) 33232323 e) 438a f) 5 23bbbb Baứi 3. n gin cỏc biu thc sau: a) 1 ,51 ,5 0 ,50 ,5 0 ,5 0 ,50 ,5 0 ,50 ,5 2ababbababab+ - ++ - + b) 0 ,50 ,50 ,5 0 ,50 ,5 221.121aaaaaaaổử +-+ - ỗữỗữ - ++ốứ ... )23 5 232D - = e) ( ) ( )( ) ( ) ( )734 452 18.2 .50 25. 4.27E = f) ( ) ( )( )336423 1 25 .16.2 255 F =ộự - ờỳởỷ g)( )( ) ( )231342033222. 25. 50,01.1010:100, 251 00,01G - ... )231342033222. 25. 50,01.1010:100, 251 00,01G - - +- = -+ h) ()()1111133333410 252 5H =-+ + i) 43 54 34.64.232Iổửỗữốứ= k) 55 523 5 81.3.9 .12 3.1827.6K =ổửỗữốứ Baứi 2. Vit cỏc...