设f(x)=ax+b,f(-1)=0,f(2)=1,求f(3)

设f(x)=ax+b,f(0)=-2,f(3)=4,则f(1)= 设f(x)=ax+b,f(-1)=0,f(2)=1,求f(3) 设:x>=0,f(x)=ax+b;x 设f(x)=x^2+ax+b,且0 设函数f(x)=ax+b,a≠0,Sn=f(1)+f(2)+f(3)+.+f(n),若f(3)=5,且f(1),f(2),f(5)成等比数列,求Sn. 设f(x)=3ax+2bx+c,若a+b+c=0,f(0)f(1)>0 设函数f(x)=ax平方+bx+1(a,b为实数) F(x)={f(x),x>0 -f(x),x0,n0 a>0,f(x）为偶函数,求证F(m)+F(n)>0 设f(x)=ax+b,且f(0)=-2,f(3)=4,则f(-2)=_______. 设f(x)=ax+b,且f(0)=-2,f(3)=4,则f(-2)=_______. 设f(X)=x2+ax+b,且1 设f(x)=ax^5-b/x+5,f(-7)=-17求f(7) （x-3)(2x-1)设函数f(x)=ax^³+b,已知f(1)=0,则 f(x)=ax+b,且f(f(x))=4x-1,求f(x) 设f(x) = ax^3 +b sin x +2 ,且f( -1) =17 ,则 f(1) 设f(x)=ax+b-lnx,在【1,3】上f(x)＞=0,求常数a,b使∫(1,3)f(x)dx最小 设f(x)=ax+b-lnx,在[1,3]上f(x)>=0,求常数a,b使∫1~3 f(x)dx最小 设f(x)=ax+b-lnx,在(1,3)上f(x)>=0,求常数a,b使∫(1,3)f(x)dx最小 设函数f(x)=loga(1-ax),其中0