已知a^2x=2(a>0且a不等于1),求(a^3x)+(a^-3x)/(a^x)+(a^-x)的值
已知a^2x=2(a>0且a不等于1),求(a^3x)+(a^-3x)/(a^x)+(a^-x)的值
数学人气：747 ℃时间：2020-04-25 13:16:21
优质解答
(a^3x)+(a^-3x)/(a^x)+(a^-x),通分.得,(（a^2x）^3+1)/(a^2x*(a^2x+1))=(2^3+1)/(2*(2+1))=1.5.
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