Question

高等数学导数题目怎样化简？

Answer 1

① C'=0(C为常数函数)
② (x^n)'= nx^(n-1) (n∈R)；熟记1/X的导数
③ (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)
⑤ (e^x)' = e^x
(a^x)' = （a^x）lna （ln为自然对数）
(Inx)' = 1/x（ln为自然对数）
(logax)' =x^(-1) /lna(a>0且a不等于1)
(x^1/2)'=[2(x^1/2)]^(-1)
(1/x)'=-x^(-2)