tìm GTLN của các biểu thức sau: D = -2017-Im-3I-I4+nI E = -(x+y)^2-(x-1)^2016+2016 F = -2Ix-yI-3Ix-2I-1
Tìm x biết:
\(\frac{x+2014}{2015}+\frac{x+2015}{2016}=\frac{x+2016}{2017}+\frac{x+2017}{2018}\)
Bài 1: Tìm x biết:
\(\frac{_{-11}}{8}\): x3 =\(\frac{-11}{25}\)
Bài 2: So sánh A và B biết:
A=\(\frac{2015}{2016}\)+ \(\frac{2016}{2017}\)+\(\frac{2017}{2018}\)
B=\(\frac{2015+2016+2017}{2016+2017+2018}\)
GIẢI GIÚP MÌNH NHÉ!!!
GIẢI CHI TIẾT HỘ MÌNH!!
CẢM ƠN!
\(\frac{x-1}{2018}+\frac{x-2}{2017}-\frac{x-3}{2016}=\frac{x-4}{2015}\)
Tìm x
\(\left(\frac{1}{2}+\frac{2015}{2016}+\frac{2016}{2017}+1\right)\left(\frac{2105}{2016}+\frac{2016}{2017}+\frac{7}{22}\right)-\left(\frac{1}{2}+\frac{2015}{2016}+\frac{2016}{2017}\right)\left(\frac{2015}{2016}+\frac{2016}{2017}+\frac{7}{22}+1\right)\)
Tìm x biết
a) \(\left(\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+...+\frac{1}{2019}\right).x=\frac{2018}{1}+\frac{2017}{2}+\frac{2016}{3}+...+\frac{2}{2017}+\frac{1}{2018}\)
b) \(\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+...+\frac{2}{x\left(x+1\right)}=\frac{2017}{2019}\)
Cho biết: x(x+1)(x+2)(x+3)....(x+2017)=2017. Tìm x (x>0)chứng tỏ rằng x> \(\frac{1}{2016!}\)
So sánh A=\(\frac{2017^{2017}}{1+2017+2017^2+....+2017^{2016}}\)
B=\(\frac{2016^{2017}}{1+2016+2016^2+...+2016^{2016}}\)
So sánh A= \(\frac{2017^{2017}}{1+2017+2017^2+...+2017^{2016}}\)
B= \(\frac{2016^{2017}}{1+2016+2016^2+...+2016^{2016}}\)