1.
圖片參考：http://imgcld.yimg.com/8/n/HA00145646/o/701110020055613873470661.jpg
請找出第1題答案同解釋第2題第二個step點去第3個step,thanks
兩題數,20分.
2011-10-02 10:52 pm
回答 (1)
2011-10-02 11:28 pm
✔ 最佳答案
1 P(Dictionary|Chinese)P(Chinese) = P(Chinese|Dictionary)P(dictionary)0.36 * 0.75 = 0.5 * P(Dictionary)P(Dictionary) = 0.54 (C)2 it is just a formula
As sin(3x)
= sin(2x + x)
= sin2xcosx + cos2xsinx
= 2sinx(cosx)^2 + (1 - 2sin^2 x)sinx
= 3sinx - 4sin^3 x
收錄日期: 2021-04-13 18:16:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111002000051KK00556