easy composite function Q
回答 (1)
2010-09-10 7:36 am
✔ 最佳答案
f(f(x))=0f(2x+3) = 02(2x+3) + 3 = 04x + 9 = 0x = - 9/4
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100909000051KK01502