lim(x→0)[(2^x+3^x)/2]^(1/x)
=e^lim(x→0)ln[(2^x+3^x)/2]/x)
=e^lim(x→0)[(ln2*2^x+ln3*3^x)/2]*[2/(2^x+3^x)] //[洛必达法则
=e^[(ln2+ln3)/2]
=e^ln√6
=√6
lim(x→0)[(2^x+3^x)/2]^(1/x)
=e^lim(x→0)ln[(2^x+3^x)/2]/x)
=e^lim(x→0)[(ln2*2^x+ln3*3^x)/2]*[2/(2^x+3^x)] //[洛必达法则
=e^[(ln2+ln3)/2]
=e^ln√6
=√6