Đặt \(A=\frac{6}{\left|x-3\right|+2}\)
Dễ thấy \(A=\frac{6}{\left|x-3\right|+2}\le\frac{6}{0+2}=3\)
Vậy GTLN của A = 3 khi |x - 3| = 0
x - 3 = 0 => x = 3
Vậy Amax = 3 khi x = 3
1, tim GTLN cua A=13/(x+5)^2+7
2, tim GTNN cua B=|x+2017|+(y+3)^2+2017
3, cho a-1/2=b+3/4=c-5/6 va 5a-3b-4c=46. Tim a,b,c.
tim GTLN cua bieu thuc
B=6/5-2|3/2-x|
tim GTLN cua bieu thuc sau
3|x|+14/|x|+2
AI GIUP MK VSSSS
a)tim GTNN cua
A=/x-2019/+(y-1)^2020-2
C=/x-3/+/x+4/-5
b)tim GTLN
B=3^2-4/x^2-25/
D=x-4/x-5
Cho ham so y=f(x)=2-9x^2+x
tim GTLN cua f(x)
1) tim GTNN cua : a) /2.x-1/ +3 b) -4+ /x-5/ c)(2-5.x)2 +1
2) tim GTLN cua : a)5-/4.x-7/ b) -/x+5/- 6 c) 12- (4.x-5)2
HELP ME !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
cho x+y=4.tim GTLN cua bieu thuc A=(x-2).y+2017
tim GTLN cua D=12/6-Ix+1I
tim GTLN cua bieu thuc B= 2013-2014.x-x mu 2-y mu 2
