当x趋向于0时,(1+sinx)^1/sin2x的极限,要过程的哦
问题描述:
当x趋向于0时,(1+sinx)^1/sin2x的极限,要过程的哦
答
lim(x→0)(1+sinx)^1/sin2x
=lim(x→0)(1+sinx)^1/(2sinxcosx)
=lim(x→0)(1+sinx)^1/(2sinx)
=lim(x→0)[(1+sinx)^1/(sinx)]^(1/2)
=e^(1/2)