|-127| - (217 + 627) + |2017|
= 127 - 217 - 627 + 2017
= -90 - 627 + 2017
= -717 + 2017
= 1300
Chúc bạn học tốt!
|- 127 |- ( 217 + 627 ) + |2017 |
= 127 - 217 + 627 + 2017
= ( 127 + 627 ) + ( -217 + 2017 )
= 754 + 1800
= 2554
|-127| - (217 + 627) + |2017|
= 127 - 217 - 627 + 2017
= -90 - 627 + 2017
= -717 + 2017
= 1300
Chúc bạn học tốt!
|- 127 |- ( 217 + 627 ) + |2017 |
= 127 - 217 + 627 + 2017
= ( 127 + 627 ) + ( -217 + 2017 )
= 754 + 1800
= 2554
Tính
A=\(\dfrac{\dfrac{2017}{2}+\dfrac{2017}{3}+\dfrac{2017}{4}+...+\dfrac{2017}{2018}}{\dfrac{2017}{1}+\dfrac{2016}{2}+...+\dfrac{1}{2017}}\)
so sánh
A= \(\dfrac{2016+2017}{2017+2018}\)và B=\(\dfrac{2016}{2017}+\dfrac{2017}{2018}\)
b) M=\(\dfrac{2017+2018}{2016+2017}\)và N=\(\dfrac{2017}{2016}+\dfrac{2018}{2017}\)
a) 127 - 18 .(5 + 6)
So sánh :
5217 và 11972
So sánh :
A = \(\dfrac{2017^{2015}+1}{2017^{2016}+1}\)
B = \(\dfrac{2017^{2014}+1}{2017^{2015}+1}\)
Tìm số nguyên x, biết:
64 - (127 - 43) = x- (53 - 64)
Cmr:(2.102017+2017)chia het cho 3
tim so tan cung cua A= 20162017+20172016
tìm số dư cho phép chia :\(2016^{2017}+2017^{2016}cho24\)