f(-2)=(-2)*(-2)+3=4+3=7
f(-1)=(-2)*(-1)+3=2+3=5
f(0)=-2*0+3=0+3=3
f(-1/2)=-2*(-1/2)+3=1+3=4
f(1/2)=-2*(1/2)+3=-1+3=2
Vậy f(-2)=7; f(-1)=5; f(0)=3; f(-1/2)=4; f(1/2)=2
cho ham so y = f(x)=2x+3
a) tinh f(0);f(2);f(-2014)va f(\(\frac{1}{2}\))
Cho ham so: y=f(x)=x^2-2/3*x+1
Tinh f(1) ; f(-1) ; f(0) ; f(-3) ; f(5)
Giup minh voi.Dang can gap
cho ham so : y=f(x)=1/2x
a,tinh f(-1),f(3),f(6)
b,ve do thi ham so da cho
Cho ham so
f(x)=4^x/4^x+2
Tinh A=f(0)+f(1/101)+f(2/101)+f(3/101)+...+f(100/101)+f(1)
cho ham so y=f(x)=4x^2-5.a,tinh f(3).f(-1/2) b,tim x de f(x)=-1
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) = 3x-1
a)Tinh f(0),f(-1)
b)Tinh gia tri tuong ung cua x voi y =2,-4
cho hai ham so y = f(x) = 2x - \(^{x^2}\) ; y = g(x) = x - 7 + 3 . tinh f(1) va g(2)
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
