设f(x)=g(x)/x ,x≠0;f(x)=0 ,x=0且g(0)=g'(0)=0,g"(x)=3.求f'(0)
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设f(x)=g(x)/x,x≠0;f(x)=0,x=0且g(0)=g''(0)=0,g"(x)=3.求f''(0)设f(x)=g(x)/x,x≠0;f(x)=0,x=0且g(0)=g''(0)=0,g"(x
设f(x)=g(x)/x ,x≠0;f(x)=0 ,x=0且g(0)=g'(0)=0,g"(x)=3.求f'(0)
设f(x)=g(x)/x ,x≠0;f(x)=0 ,x=0且g(0)=g'(0)=0,g"(x)=3.求f'(0)
设f(x)=g(x)/x ,x≠0;f(x)=0 ,x=0且g(0)=g'(0)=0,g"(x)=3.求f'(0)
f'(0)=lim 【f(x)-f(0)】/x
=lim g(x)/x^2 洛必达法则
=lim g'(x)/(2x)
=0.5lim 【g'(x)-g'(0)】/x
=g''(0)/2
=3/2.