limx→0(2^x-1/3^x-1)
问题描述:
limx→0(2^x-1/3^x-1)
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答
limx→0(2^x-1/3^x-1)
=limx→0(2^x-1)’/(3^x-1)’
=limx→0(2^xln2/3^xln3)
=ln2/ln3