lim(x→0)x^sin8x/sin^2(4x)sin10x
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求lim x→0时(2+e^ 1/x / 1+ e^ 4/x + sin x / |x| )的极限...
lim(x趋向0)ln(1+sin x)/x^2
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x趋于0时,lim(x^2-sin^2 xcos^2 x)/(x^2sin^2 x)怎么转换成(x^2-(1/4)sin
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求极限:lim x→0 ln[1+sin^2(x)]/[e^(x^2)-1]