Các câu hỏi tương tự
Cho A =6 phan can x+2
a) tinh gia tri A tai x=0,9,4 phan 25
b) tim x =? De :
1)A= 1 phan 2
2) A nho hon 3
c) tim x thuoc z de A thuoc z
bai 1: a) tim p/s co mau so bang 10, lon hon -7/13, nho hon -4/13
b) tim 10 so a/b biet -1/2<a/b<1/2
c) tim cac p/s -3/5<a/20<-1/4
ai tra loi nhanh va dung mk tick cho
Cac ban oi giup minh voi
tim x biet 6.4/x=x/99tim cac so nguyen biet (|x|-3)(x^2+4) be hon hoac bang 4hai dia diem a va b cach nhau 90kmhai nguoi di xe dap cung mot luc tu ava bde gap nhau va ho gap nhau cach a 50km;nhung neu nguoi di tu b di nhanh hon xuat phat truoc nguoi a 1 gio thi ho gap nhau cach a 350/9km tinh van toc moi nguoiCac giai ho minh voi minh se tick cho
Cac ban nho viet ho cach lam min voi
Tim x, y, z biet
a ) |x-3,5|+ |x+5|=0
b) |x-1| + (y+1)^2 + |z-1|=0
c) ( x-1/3)^2 + (y-2)^2+ (z-1)^2 be hon hoac bang 0
d)(x-z)^2+ (y+x)^2 + (z+1/4)^2 =0
Cac ban giup minh voi minh can gap lam
Cho a thuoc Z+ b thuoc Z- .Hay so sanh IaI va IbI trong cac truong hop
A)a+b thuoc Z+
B)a+b thuoc Z-
cho ham so \(y=f\left(x\right)=ax^2+bx+c\)(a;b;c thuoc Q)
chung to rang f(-2)*f(3) nho hon hoac bang 0, biet rang 13a+b+2c=0
cac ban ơi giup mk
cho da thuc P(x) =ax +b (a,b thuoc Z , a khac 0 )
Nhung minh
P|(2019)-P(1)| luon lon hon hoac bang 2018
cho ham so y= f(x) =6/x
tinh f(1) ; f(1.5) ;f(2) ;f(3) ;f(-2/3)
tim x biet y=3 ; y=-2
tim y biet 1<x>3 ; 1.5 be hon hoac bang x lon hon hoac bang 6
diem nao trong cac diem sau day khong thuoc do thi ham s
A(-1;-6 ) ; B(-0.5 ;-12 ) ;C(-0.5 ; -13 ) ; D(-1/3 ; -3 )
tim x biet
a)-1 + 3 + ( -5) + 7 + ...+ x = 600
b) 9 nho hon bang |x - 3| < 11