ch ham so y=f(x)=|x-1|+2
a,tinh f(-2); f(1/2)
b,tim x sao cho f(x)=3
cho ham so y=f(x) thoa man dieu kien f(x1+x2)=f(x1)+f(x2) va f(x)-xf(-x)=x+1 voi moi x thuoc R
A CMR M(0,1)thuoc do thi ham so
B Tinh f(2019)
cho ham so y=f(x)=4x^2-5.a,tinh f(3).f(-1/2) b,tim x de f(x)=-1
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 )
cho ham so y=f(x)=ax.biet f(-3)=2
a, tinh he so a va ve do thi ham so
b, tim x de f(x)=-6,ungvoi gia tri a tim duoc o cau a
Cho ham so y=y (x)=2x-0,3
Tinh f(1) f(-0;2)
Tim 2 so xy bietx/3=y/7va x+y=120 do
cho ham so y = f(x) = ax + 4 co do thi ham so di qua A(a+1; a^2-a). Tim A
Cho ham so y=f(x)=2-9x^2+x
tim GTLN cua f(x)
cho hai ham so y=f(x)=|2x| va y=g(x)=3
a)ve tren cung mot he truc toa do Oxy do thi cua hai ham so do
b)dung do thi ham so tim cac gia tri cua x sao cho |2x|<3