设f(x)在x=0的某邻域内二阶可导,且lim (x->0) (sin3x/x^3 + f(x)/x^2) =0 求 f(0),f(0)一阶二阶导数,并求lim (x->0) [f(x)+3]/x^2
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![设f(x)在x=0的某邻域内二阶可导,且lim (x->0) (sin3x/x^3 + f(x)/x^2) =0 求 f(0),f(0)一阶二阶导数,并求lim (x->0) [f(x)+3]/x^2](/uploads/image/z/1983267-27-7.jpg?t=%E8%AE%BEf%28x%29%E5%9C%A8x%3D0%E7%9A%84%E6%9F%90%E9%82%BB%E5%9F%9F%E5%86%85%E4%BA%8C%E9%98%B6%E5%8F%AF%E5%AF%BC%2C%E4%B8%94lim+%28x-%3E0%29+%28sin3x%2Fx%5E3+%2B+f%28x%29%2Fx%5E2%29+%3D0+%E6%B1%82+f%280%29%2Cf%280%29%E4%B8%80%E9%98%B6%E4%BA%8C%E9%98%B6%E5%AF%BC%E6%95%B0%2C%E5%B9%B6%E6%B1%82lim+%28x-%3E0%29++%5Bf%28x%29%2B3%5D%2Fx%5E2)
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