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批踢踢實業坊 ask 板

May 31st 2014, 23:42, by wjx0305

作者wjx0305 (胖包子~)

看板ask

標題[請問] 請問三角函數的週期

時間Sat May 31 23:42:08 2014

請問三角函數的週期：有絕對值又有加減，不知道怎麼判斷@@" y = |sinx| + |cosx| y = sin2x - 3cos6x + 5 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 27.105.6.193 ※ 文章網址: http://www.ptt.cc/bbs/ask/M.1401550930.A.672.html

→ wxtab019:前幾天在Math不就問過了... 05/31 23:46

→ APM99:google畫圖功能即可判斷 06/01 00:07

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