Tìm x , y thỏa mãn :
a) \(\frac{1}{2}\times(\frac{3}{4}x-\frac{1}{2})^{2018}+\frac{2017}{2018}\times/\frac{4}{5}y+\frac{6}{25}/\le0\)0
b) \(2017\times/2x-y/+2018\times(y-4)^{2017}\le0\)
Tìm x,y biết:
a) (x+y)2018 + 2017.| y-1 | = 0
b) ( x - 1)2 + ( y + 3)2 = 0
c) 2017. |2x - y|2018 + 2018. | y- 4| 2017 = 0
d) ( x + y)2018 + 2017. | y - 1 | = 0
Giúp mik gấp ạ!!!
Tìm giá trị nhỏ nhất
P = 2018/x^2+2x+2017
Q = a^2018+2017/a^2018+2015
A = (x-3y)^2020+(y-2018)^2018
B = (x+y-5)^8+(x-2y)^4+2016
C = \x-2017\+\x-2018\
D = \x-2010\+\x-2011\+\x+2012\
cho x=2017 tính
y=f(x)=x5-2018*x4+2018*x3-2018*x2+2018*x-1
Tìm x,y thõa mãn: /x-1/+/x-2017/+/y-2018/+/x-2018/=2017
Tìm x,y thỏa mãn:\(|x-1|+|x-2017|+|y-2018|+|x-2018|=2017\)
Cho 3 số x,y,z thỏa mãn : x/2016 = y/2017 = z/2018
a CMR : (x-z)^2 = 8(x-y) (y-z)
b Cho biết x/24 + y/4 = z/2018 . Tính x,y,z ?
Cho x,y>0 thỏa mãn
x^2015+y^2015=x^2016+y^2016=x^2017+y^2017
C/m: 1/x^2018+1/y^2018=1/x^2019+1/y^2019
Tính x, y
\(x=\frac{2^{2018}+2^{2019}}{2^{2017}+2^{2018}}\)
\(y=\sqrt{10^2-8^2}-\sqrt{3^2+4^2}\)