f(x)=(x-1)^2,g(x)=1⼀(x+1),求f[g(x)]

f(x)=(x-1)^2,g(x)=1/(x+1),求f[g(x)]如题,答案是x^2/[(x+1)^2],求步骤
2025-02-27 04:19:24
推荐回答(2个)
回答1:


采纳呦

回答2:

f[g(x)]=f(1/(x+1))=[1/(x+1)-1]²=[-x/(x+1)]²=x²/(x+1)²