/x-2/>(=)0 với mọi x
=>5/x-2/>(=)0 với mọi x
=>5/x-2/ +2016 >(=) 2016 với mọi x
Dấu bằng xảy ra <=> x-2=0 =>x=2
vậy Amin =2016 <=> x=2
tim x:
/x-3,5/+/2,6-x/=0
/ la dau gia tri tuyet doi
Cac ban giup minh voi minh can nop gap
Tim gia tri nho nhat cua bieu thuc:
P= / x-1/+/x-2017/+/x-2018/
* Dau gach cheo la dau gia tri tuyet doi nhe
Tim x, y
a. /x/+x=\(\frac{1}{3}\)
b./x-2/=x
// la dau gia tri tuyet doi
Tim GTNN
C = / 2x + 1 / + / 30 +2x /
tren kia dau / .. / la gia tri tuyet doi
Giai giúp minh voi! 1 cau cung duoc ( Abs (x) la tri tuyet doi cua x vi may minh khong go duoc dau tri tuyet doi )
Tim gia tri nho nhat
a Abs(x-1/4) + Abs(x-3/4)
b. Abs(x-1) + Abs(x-2) + Abs(x-5)
Tim x
Abs(x-3/2) + Abs(2,5-x) = 0
Abs(3x-1) = Abs(4-x)
Abs(2x+3) = x+3
3 - /x + 1/2 / = 5/ 4
/ dau tien la dau gia tri tuyet doi
tim x
/x-5/=x-5
/ la gia tri tuyet doi
Tim gia tri nho nhat hoac lon nhat trong cac bieu thuc sau:
\(B=\frac{a^2+15}{a^2+3}\)
\(A=/x=5/+7\)
Trong do dau / ; la gia tri tuyet doi
tim x thoa mam
gia tri tuyet doi cua 3x-5=gia tri tuyet doi x+7