Given the function p(x) = cos(x°+30°)
question: find the value of [p(11)]²+ [p(12)] ²+…+[p(19)] ²
(leave the answers in surd form)
收錄日期: 2021-04-13 13:17:02
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070708000051KK04062