vì x-2017>=0
=>x-2014+x-2015+x-2016=x-2017
<=>2x=4028
<=>x=2014
vì x-2017>=0
=>x-2014+x-2015+x-2016=x-2017
<=>2x=4028
<=>x=2014
x^2013+y^2013=x^2014+y^2014=x^2015+y2015 tinh x^2016+y^2016
Tính A = x2016 - 2016.x2015 + 2016.x2014 - 2016.x2013 + ... + 2016x2 - 2016x +2016 tại x = 2015
tìm x biết
\(\frac{x-1}{2016}+\frac{x-2}{2015}+\frac{x-3}{2014}+...+\frac{x-2016}{1}=2016\\ \)
\(\dfrac{x}{2012}\) +\(\dfrac{x+1}{2013}\)+\(\dfrac{x+2}{2014}\)+\(\dfrac{x+3}{2015}\)+\(\dfrac{x+4}{2016}\)=5
tinh nhanh bieu thuc sau
a) x^6-20x^5-20x^4-20x^4-20x^3-20x^2-20x+1992 voi x= 21
b)x^7-26x^6+27x^5-47x^4-77x^3+50x^2+x+1989 tai x = 25
c)4029-2015x+2015x^2-....+2015x^2014-x^2015 tai x= 2014
d)A= (x-1/x-2015+x-2/x-2014+x-3/x-2013+....+x-2014/x-2+x-2015/x-1):(1/2 +1/3+1/4+....+1/2016) tai x=2016 dau / o day la phan do nha!!
xin nho cac ban giai giup cho minh! cam on nhieu!!!!!!!! minh dang can ket qua gap
tìm x biết: x-1/ 2016 + x-2/ 2015+ x-3/ 2014 +....+ x-2016/1 = 2016
Mình phải nộp gấp nên đúng mình tick cho nha
giải phương trình :
(x/2012)+(x+1/2013)+(x+2/2014)+(x+3/2015)+(x+4/2016)=5
giúp tôi giải bài toán:(x+1)/2016)+(x+2)/2015)+(x+3)/2014)+(x+4)/2013)=0
\(\dfrac{x+1}{2012}+\dfrac{x+2}{2011}+\dfrac{x+3}{2010}=\dfrac{x-1}{2014}+\dfrac{x-2}{2015}+\dfrac{x-3}{2016}\)