If f(x)=4x+1 and g(x)=x^2-3x+1,then (f+g)(-2)=?

If g(f(x))=2x+1 and f(x)=1/4x-1,then g(x)= If f(x)=4x+1 and g(x)=x^2-3x+1,then (f+g)(-2)=? It is given that f(x-1)= -2(x-1)^3 + (x-1)^2 +x-1 and g(x)=2x^3 - x^2 - x +k.If..It is given that f(x-1)= -2(x-1)^3 + (x-1)^2 +x-1 and g(x)=2x^3 - x^2 - x +k.If the graph of y= g(x) is obtained by translating the graph of y=f(x) upwards by 3 units,an max{f(x),g(x)}=1/2(f(x)+g(x)+|f(x)-g(x)| 1.given the function f(x) = x*2 -4x -5,find the values of:a) f(k-2) b) f(x*2) - x*2 f(1)2.given two functions f(x) = x*2 -3 and g(x) = 3x-4,find the values of:a) f(k+1) -g(k-1) b) f(g(x)) c) g(f(x))3.let f(x) = 1/1-x,finda) f(f(x)) b) f(f(f(x))) c) f f(x)=2x-1,g(x)=x^2,则f[g(x)]=?,g[f(x)]=?,f[f(x)]=?,g[g(x)]=? f(x)=x²-5x+4,g(x+1)=f(x),那么g(x)=( ) 已知f(x)g(X)分别为奇函数和偶函数,2f(x)+3g(x)=9x2+4x+1,求f(x)和g(x) Given (f+g)(x)=10-3x and (f-g)(x)=5x-14,find f(x) and g(x). f(x)=e^x-e^-x,g(x)=e^x+e^-x,e=2.71（1）若f(x)f(y)=4,g(x)g(y)=8,求g(x+y)/g(x-y)? 线性代数题 若(f(x),g(x))=1,证明(f(x)g(x),f(x)+g(x))=1 证明：若(f(x),g(x))=1,则,(f(x)g(x),f(x)＋g(x))=1 已知f(x)=x-1 g(x)= x-1 x0 求 f{g(x)} g{f(x)} 设f(x)=1(|x|1);g(X)=e^x,求f[g(x)]和g[f(x)]. 已知f(x),g(x)定义域为R.f(x)为奇函数.g（x)为偶函数且2f(x)+3g(x)=9x^2-4x+1求f（x）.g（x）的解析式 | f(x) | / | g(x) | = | f(x)/g(x) | 吗? 设f(x)=2^x,g(x)=4^x,g(g(x))>g(f(x))>f(g(x)),求X的取值范围 设f(x),g(x),h(x)都是多项式,若 (f(x),g(x))=1,证明(f(x)+g(x)h(x),g(x))=1