Ngày tải lên :
20/05/2015, 16:10
... 10 01x127x1 25 = (1 ) Nên (1+ 3 +5+ 7+…+2 011 ) x ( 12 51 2 5 x 12 7 – 12 712 7 x 12 5) = (0 ,5 ) b) 12 ,48 : 0 ,5 × 6, 25 × × 12 ,48 × × 6, 25 × × × × = = (1 ) = 10 × 3 ,12 × 1, 25 : 0, 25 × 10 × 3 ,12 × 1, 25 × × 10 b) 1, 1 + 2,2 ... 2) 456 7 + (3 × 0,6) 5 310 (1 + 55 ) = × 19 − 51 4 1, 8 × 12 3 + 1, 8 × 456 7 + 1, 8 × 5 310 28 × 19 − 51 4 (0 ,5 iĨm) = (0 ,5 iĨm) = 1. 8 × (12 3 + 456 7 + 5 310 ) 18 (0 ,5 iĨm) = 1, 8 × 10 .000 = 10 00 18 (0, 25 iĨm) ... +1, 8 x 1, 9) x (1, 25 – 0, 25 x 5) = (1, 1 + 1, 2 x 1, 3 + 1, 4 x 1, 5 + 1, 6 x 1, 7 +1, 8 x 1, 9) x (1, 25 – 1, 25) (0 .5 ) = (1, 1 + 1, 2 x 1, 3 + 1, 4 x 1, 5 + 1, 6 x 1, 7 +1, 8 x 1, 9) x (0 .5 ) =0 Bµi 2: (2 ®iĨm) Tìm...