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(Sinx-tanx)/4xx+tanx趋近0的极限
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(Sinx-tanx)/4xx+tanx趋近0的极限
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答案和解析
题目若是 lim[(sinx-tanx)/(4x^2 )+tanx ]
=lim[tanx(cosx-1)/(4x^2 )+tanx ]
=lim[(-x^2/2)*tanx/(4x^2 )+tanx ]
=lim[-tanx/8+tanx ]=0
题目若是 lim[(sinx-tanx)/(4x^2 +tanx)]
=lim[tanx(cosx-1)/(4x^2 +tanx)]
=lim[(-x^3/2)/(4x^2 +tanx)] =0
题目
若是 lim[(sinx-tanx)/(4x^2 *tanx)]
=lim[(cosx-1)/(4x^2 )]
=lim[(-x^2/2)/(4x^2 )]=-1/8.
=lim[tanx(cosx-1)/(4x^2 )+tanx ]
=lim[(-x^2/2)*tanx/(4x^2 )+tanx ]
=lim[-tanx/8+tanx ]=0
题目若是 lim[(sinx-tanx)/(4x^2 +tanx)]
=lim[tanx(cosx-1)/(4x^2 +tanx)]
=lim[(-x^3/2)/(4x^2 +tanx)] =0
题目
若是 lim[(sinx-tanx)/(4x^2 *tanx)]
=lim[(cosx-1)/(4x^2 )]
=lim[(-x^2/2)/(4x^2 )]=-1/8.
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