... : = : (0 ,5 ) 13 39 13 39 35 39 = ⋅ (0, 25 ) 13 70 = =1 (0, 25 ) 2 3 3/ ( - 0,4 ) - 2, 75 + ( -1, 2) : 11 11 − 2 75 − 12 11 − ⋅ + ⋅ = ⋅ (0, 25 ) 10 10 0 10 − 11 11 − 35 − ⋅ + = (0, 25 ) 10 10 − 44 22 ... luận: (6 ) 1/ Tính: Câu d −3 −4 −3 −4 + + + + = (0 ,5 ) 13 13 −8 = 1+ = (0 ,5 ) 13 13 −9 − 9 .5 − ⋅ = = b) (1 ) 11 18 11 .18 22 11 15 2/ a) ⋅ = ⋅ (0 ,5 ) 4 16 5 = 20 = (0 ,5 ) 8 31 35 70 b) ... (0, 25 ) 10 − 22 22 − 44 − = = −8 = (0, 25 ) 5 5 1 1 1 1 1 4/ T= (1- ) (1- ) (1- ) (1- ) (1- ) (1- ) (1- ) (1- ) (1- ) (1- ) 11 10 11 = − − − − − − (0, 25 )...