Cho M :x-2/x+3
a, Tim x € Z de M co gia tri nguyen
b, Tim x € Z de M la gia tri nho nhat . Tim gia tri nho nhat do
Tim x thuoc Z de bieu thuc sau day dat gia tri lon nhat :
B= 2015x+1/2016x-2016 (x thuoc Z; x khac 1)
tim gia tri nho nhat cua bieu thuc P = 14-x/4-x ; ( x thuoc z) khi do xnhan gia tri nguyen nao
A = x^2 - 8x + 2015 tim x de A dat gia tri nho nhat
tim cac so nguyen x de bieu thuc
A= |x-1|+|x-2|dat gia tri nho nhat
Tim x ; y de :
A = lxl + l 8-xl dat gia tri nho nhat
tìm x thuộc z de A=|x-1|+|x-3| dat gia tri nho nhat
Cho so nguyen to n co 2 chu so hang chuc la x, hang don vi la y. Biet M=n/x+y. Tim n de M=2. Tim n de M dat gia tri nho nhat
Cho ham so f(x) = | x - 2014 | - | x + 2014 |
a, Chung minh rang f(x) = -f(-x)
b, Tim x de f(x) dat gia tri nho nhat, gia tri lon nhat
GIUP MIK VS