(x+2/x-2)^x
=[1 + 4/(x-2)]^x
=[1 + 4/(x-2)] ^ (x-2)/4 *4/(x-2)* x
=【[1 + 4/(x-2)] ^ (x-2)/4 】 * 4/(x-2) * x
=【e】^4
【括號內(nèi)的形式就如lim (1+1/x)^x 極限是e】
所以答案就是e^4,【e的四次方】lim (1+1/x)^x極限是e 4/(x-2) * x的極限是4?為什么?
lim(x+2/x-2)X次方,求極限.x→無窮
lim(x+2/x-2)X次方,求極限.x→無窮
數(shù)學(xué)人氣:411 ℃時間:2020-04-07 08:11:27
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