Giải:
\(\dfrac{2^{2016}+2^{2016}}{-2^{2017}}\)
\(=\dfrac{2.2^{2016}}{-2^{2017}}\)
\(=\dfrac{2^{2017}}{-2^{2017}}\)
\(=-1\)
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Các câu hỏi tương tự
\(\dfrac{2^{2016}+2^{2016}}{-2^{2017}}\)
\(\dfrac{x+1}{2015}+\dfrac{x+2}{2016}=\dfrac{x+3}{2017}+\dfrac{x+4}{2018}\)
tính :P=\(\dfrac{\left(2016^2\cdot2026+31\cdot2017-1\right)\left(2016\cdot2021+4\right)}{2017\cdot2018\cdot2019\cdot2020\cdot2021}\)
a) Tìm x(x thuộc N*), biết left(1+dfrac{1}{1.3}right)left(1+dfrac{1}{2.4}right)left(1+dfrac{1}{3.5}right)...left(1+dfrac{1}{xleft(x+2right)}right)dfrac{31}{16}
b) Chứng tỏ dfrac{2}{2^2}+dfrac{2}{4^2}+dfrac{2}{6^2}+...+dfrac{2}{2016^2} dfrac{2016}{2017}
c) Chứng tỏ dfrac{1}{5^2}+dfrac{1}{9^2}+dfrac{1}{13^2}+...+dfrac{1}{41^2} dfrac{10}{129}
Đọc tiếp
a) Tìm x(x thuộc N*), biết \(\left(1+\dfrac{1}{1.3}\right)\left(1+\dfrac{1}{2.4}\right)\left(1+\dfrac{1}{3.5}\right)...\left(1+\dfrac{1}{x\left(x+2\right)}\right)=\dfrac{31}{16}\)
b) Chứng tỏ \(\dfrac{2}{2^2}+\dfrac{2}{4^2}+\dfrac{2}{6^2}+...+\dfrac{2}{2016^2}< \dfrac{2016}{2017}\)
c) Chứng tỏ \(\dfrac{1}{5^2}+\dfrac{1}{9^2}+\dfrac{1}{13^2}+...+\dfrac{1}{41^2}< \dfrac{10}{129}\)
26 tháng 1 2019 lúc 23:05
Giải các phương trình:
\(\dfrac{x+1}{2019}+\dfrac{x+2}{2018}=\dfrac{x+2017}{3}+\dfrac{x+2016}{4}\)
Given that \(f\left(x\right)=\dfrac{x^2}{2x-2x^2-1}\)
Caculate:
\(f\left(\dfrac{1}{2016}\right)+f\left(\dfrac{2}{2016}\right)+f\left(\dfrac{3}{2016}\right)+...+f\left(\dfrac{2015}{2016}\right)+f\left(\dfrac{2016}{2016}\right)\)
(Input the answer as a decimal in its simplest form)
Tính:
A=(1/1009+1/1010+...+1/2016+1/2017):(1-1/2+1/3-1/4+...+1/2018-1/2016+1/2017)
1) ABC is a triangle where M is the midpoint of segment BC.
MD and ME are two bisectors of triangles AMB and AMC respectively.
If AM m; BC a . Then DE ???
2)dfrac{1}{left(x+29right)^2}+dfrac{1}{left(x+30right)^2}dfrac{5}{4}
What is the product of all real solutions to the equation above?
3) The sum of all possible natural numbers n such that
n^2+n+1589 is a perfect square is.....
4) Given that x is a positive integer such that x and x+99 are perfect squares
The sum of integer x is ....
Đọc tiếp
1) ABC is a triangle where M is the midpoint of segment BC.
MD and ME are two bisectors of triangles AMB and AMC respectively.
If AM= m; BC = a . Then DE = ???
2)\(\dfrac{1}{\left(x+29\right)^2}+\dfrac{1}{\left(x+30\right)^2}=\dfrac{5}{4}\)
What is the product of all real solutions to the equation above?
3) The sum of all possible natural numbers n such that
\(n^2+n+1589\) is a perfect square is.....
4) Given that x is a positive integer such that x and x+99 are perfect squares
The sum of integer x is ...
5)The operation @ on two numbers produces a number equal to their sum minus 2. The value of
(...((1@2)@3....@2017)
6) Given f(x)=\(\dfrac{x^2}{2x-2x^2-1}\)
=> \(f\left(\dfrac{1}{2016}\right)+f\left(\dfrac{2}{2016}\right)+f\left(\dfrac{3}{2016}\right)+...+f\left(\dfrac{2016}{2016}\right)\)
Các bn giúp mk vs >>> tks nha!!!
Giải phương trình \(\dfrac{x-1}{2016}+\dfrac{x-2}{2015}+\dfrac{x-3}{2014}+...+\dfrac{x-2016}{1}\)