1/2016—2/2015—.......—2016/1=
(1/2+2015/2016+2016/2017+1)(2015/2016+2016/2017+7/22)-(1/2+2015/2016+2016/2017)(2015/2016+2016/2017+7/22+1)
Tính
(1/2 + 2015/2016 + 2016/2017 + 1)(2015/2016 + 2016/2017 + 7/22) - (1/2 + 2015/2016 + 2016/2017)(2015/2016 + 2016/2017 + 7/22 + 1)
Giúp mk với
(1/2+2015/2016+2016/2017+1)(2015/2016+2016/2017+7/22)-(1/2+2015/2016+2016/2017)(2015/2016+2016/2017+7/22+1)
(1/2+2015/2016+216/2017+1)(2015/2016+2016/2017+7/22)-(1/2+2015+2016)(2015/2016+2016/2017+7/22+1)
(1+2015/2016+2016/2017+1/2).(2015/2016+2016/2017+7/22)-(2015/2016+2016/2017+1/2).(2015/2016+2016/2017+7/22+1)
tính tổng trên
( trình bày cách tính
Bài 1 :
a, - { -(2016 +2015) - [ - (2016 - 2015) - (2016+2015) ] }
b, 2016 - { ( 2016 + 3) - [ (2016 + 3) - (- 2016 - 2) ] }
c, [ 2016 + (2016 + 3) ] - [ (2016 + 2) - (2016 - 2) ]
a, - { -(2016 +2015) - [ - (2016 - 2015) - (2016+2015) ] }
= -{-(2016+2015)-[-0-0]}
= -{-4031-0-0}
=-4031
(1/2+2015/2016+2016/2017+1)(2015/2016+2016/2017+7/22)
\(\left(\frac{1}{2}+\frac{2015}{2016}+\frac{2016}{2017}+1\right)\left(\frac{2105}{2016}+\frac{2016}{2017}+\frac{7}{22}\right)-\left(\frac{1}{2}+\frac{2015}{2016}+\frac{2016}{2017}\right)\left(\frac{2015}{2016}+\frac{2016}{2017}+\frac{7}{22}+1\right)\)
(1/2+2015/2016+1 )nhaân (2016/2017+7/2) - (1/2+2015/2016) nhaân (7/2+2016/2017 +1)
TÍNH PHEP TÍNH NAY
Tính giá trị
A = 2 / 2015 ( 1 / 2015 + 5 / 2016) - 1 / 2016 ( 7 - 2 / 2015) - 2 / 2015 ( 1 / 2015 + 6 / 2016)
Giải chi tiết giùm nha mình cần gấp