屠夫哥哥不要追我
南风   China
 
 
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Multiple game bans on record | Info
1651 day(s) since last ban
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167 hrs on record
last played on 28 Jul
0.5 hrs on record
last played on 16 Jul
11.7 hrs on record
last played on 13 Jul
Comments
我永远喜欢KizunaAI 29 Mar, 2022 @ 9:56pm 
一起玩吗?上次一起打过
76561199060340265 25 Mar, 2022 @ 4:14am 
. ∧_∧ 
( ºωº )つ━☆・*。
⊂|   |    ・゜+.
 しーJ   °。+ *´¨)
         .• ´¸.•*´¨) ¸.•*¨)
          (¸.•´ (¸.•'* ☆ 兄弟加我好友 ☆
七块点心 11 Dec, 2021 @ 9:35pm 
哥哥加我🥵🥵🥵忍不住了,开导!





(sinx)' = cosx

  (cosx)' = - sinx

  (tanx)'=1/(cosx)^2=(secx)^2=1+(tanx)^2

  -(cotx)'=1/(sinx)^2=(cscx)^2=1+(cotx)^2

  (secx)'=tanx·secx

  (cscx)'=-cotx·cscx

  (arcsinx)'=1/(1-x^2)^1/2

  (arccosx)'=-1/(1-x^2)^1/2

  (arctanx)'=1/(1+x^2)

  (arccotx)'=-1/(1+x^2)

  (arcsecx)'=1/(|x|(x^2-1)^1/2)

  (arccscx)'=-1/(|x|(x^2-1)^1/2)

  ④(sinhx)'=coshx

  (coshx)'=sinhx

  (tanhx)'=1/(coshx)^2=(sechx)^2

  (coth)'=-1/(sinhx)^2=-(cschx)^2

  (sechx)'=-tanhx·sechx

  (cschx)'=-cothx·cschx

  (arsinhx)'=1/(x^2+1)^1/2

  (arcoshx)'=1/(x^2-1)^1/2

  (artanhx)'=1/(x^2-1) (|x|<1)

  (arcothx)'=1/(x^2-1) (|x|>1)

  (arsechx)'=1/(x(1-x^2)^1/2)

  (arcschx)'=1/(x(1+x^2)^1/2)​
布川苦茶子A 27 Mar, 2021 @ 9:17pm 
ₘₙⁿ
▏n
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(开学了或上班了游戏也)不要停下来啊!
Don't stop ! (when school starts or work)