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åºæ¬å½æ°ç导å½æ°ï¼
C'=0(C为常æ°)
(x^n)'=nx^(n-1) (nâR)
(sinx)'=cosx
(cosx)'=-sinx
(e^x)'=e^x
(a^x)'=(a^x)*lna(a>0ä¸aâ 1)
[logax)]' = 1/(x·lna)(a>0ä¸aâ 1ä¸x>0)
[lnx]'= 1/x
2. å¤åå½æ°ç导å½æ°
设 y=u(t) ï¼t=v(x)ï¼å y'(x) = u'(t)v'(x) = u'[v(x)] v'(x)
3. f'(x)代表å½æ°ä¸æä¸ç¹å¨è¯¥ç¹å¤å线çæçã
a.对äºéåºé´ç端ç¹,å½æ°åªè¦æ±åè¾¹å¯å¯¼ï¼ä¸éè¦ä¸¤ä¾§é½å¯å¯¼ã
b.å¨æé表达å¼ä¸,â³xæ¯åé,xæ¯å¸¸éã
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