\(19-\left|2x+2016\right|-\left|3\right|=19-\left|2x+2016\right|-3=16-\left|2x+2016\right|\)
vì \(\left|2x+2016\right|\ge0\)
=> \(-\left|2x+2016\right|\le0\)
=>\(16-\left|2x+2016\right|\le16\)
Vậy GTLN của bt trên là 16 khi 2x+2016=0<=>x=-1008
a , Tim gia tri nho nhat cua bieu thuc A = 31 - \(\sqrt{2x+7}\)
b , Tim gia tri lon nhat cuar bieu thuc B = -9 + \(\sqrt{7}+x\)b
a Tim gia tri nho nhat cua bieu thuc A = 31 - \(\sqrt{2x+7}\)
b , Tim gia tri lon nhat cua bieu thuc B = -9 + \(\sqrt{7+x}\)
Help me !!!
Tim x thuoc z de ps sau co gia tri la so nguyen
D = 2x - 3 / x - 1
x-y=4 va x/y=3
Tim gia tri x , y thoa man
tim gia tri nho nhat cua bieu thuc:
A=lx-2001l + lx-1l
tim gia tri nho nhat cua x+\(\sqrt{x}+1\)
a)Tim so nguyen x va y biet :
5/x+y/4=1/8
b)Tim so nguyen x de A co gia tri la 1 so nguyen biet :
A=(căn x +1) /(căn x -3) (x lớn hơn hoặc bằng 0)
TIm x thuoc Z de ps sau co gia tri la so nguyen :
C = \(\frac{3x+8}{x-1}\)
Giai chi tiet nha
cho cac da thuc
A=x mu 2-2x-y+3y-1
B= -2x mu 2+3y mu 2-5x+y+3
a)Tinh: A+B ; A-B
b)Tinh gia tri cua da thuc A tai x=1;y =-2
