求极限(x->无穷大)[(2x+3)/(2x+1)]^(x+1)

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求极限(x->无穷大)[(2x+3)/(2x+1)]^(x+1)
求极限(x->无穷大)[(2x+3)/(2x+1)]^(x+1)

求极限(x->无穷大)[(2x+3)/(2x+1)]^(x+1)
极限(x→∞)[(2x+3)/(2x+1)]^(x+1)
=lim (x→∞)[1+2/(2x+1)]^(x+1)
=lim(x→∞)[1+1/(x+1/2)]^(x+1)
=lim(x→∞)[1+1/(x+1/2)]^(x+1/2)*[1+1/(x+1/2)]^(1/2)
=e*(1+0)^(1/2)
=e