若g(x)=1-2x,f[g(x)]=1-X2/x2(x≠0),则f(½)等于多少我看过答案的 但是就是不能理解 “f[g(x)]=f(½)那么1-2x=½ x=¼“ g(x)和f(x)不是两个不同的概念吗 我不能区分 急 f[g(x)]和f(x)有什
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/05 15:10:43
![若g(x)=1-2x,f[g(x)]=1-X2/x2(x≠0),则f(½)等于多少我看过答案的 但是就是不能理解 “f[g(x)]=f(½)那么1-2x=½ x=¼“ g(x)和f(x)不是两个不同的概念吗 我不能区分 急 f[g(x)]和f(x)有什](/uploads/image/z/325246-22-6.jpg?t=%E8%8B%A5g%28x%29%3D1-2x%2Cf%5Bg%28x%29%5D%3D1-X2%2Fx2%28x%E2%89%A00%29%2C%E5%88%99f%28%26%23189%3B%29%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%E6%88%91%E7%9C%8B%E8%BF%87%E7%AD%94%E6%A1%88%E7%9A%84+%E4%BD%86%E6%98%AF%E5%B0%B1%E6%98%AF%E4%B8%8D%E8%83%BD%E7%90%86%E8%A7%A3+%E2%80%9Cf%5Bg%28x%29%5D%3Df%28%26%23189%3B%EF%BC%89%E9%82%A3%E4%B9%881-2x%3D%26%23189%3B+x%3D%26%23188%3B%E2%80%9C+g%EF%BC%88x%EF%BC%89%E5%92%8Cf%EF%BC%88x%EF%BC%89%E4%B8%8D%E6%98%AF%E4%B8%A4%E4%B8%AA%E4%B8%8D%E5%90%8C%E7%9A%84%E6%A6%82%E5%BF%B5%E5%90%97+%E6%88%91%E4%B8%8D%E8%83%BD%E5%8C%BA%E5%88%86+%E6%80%A5+f%5Bg%28x%29%5D%E5%92%8Cf%EF%BC%88x%EF%BC%89%E6%9C%89%E4%BB%80)
xRJ@}aI ݘkICЋz\f6]-uaZAE曤WdRYjě33g9gnkMmL%SB_JeH/f]b=hBZXߍa_aCBG֭D0
cAiTh'_xrH |,/ru L$]#mvJKZ=?5.e&kΎ
n%a6Ԯ,=>}M2-+"")FXHgT=1F$eXvDm㨺I&<{NWʕtRX:+Wh¤1)n♘m|ü
icC~UmTw ŞE.?`PƁG6<