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已知n为自然数,且x^2n=3,求(-3\1x^3n)^4÷[4(x^2)^2n]的值
人气:446 ℃ 时间:2020-06-25 04:36:45
解答
(-x^3n/3)^4÷[4(x^2)^2n]
=x^12n/3^4÷[4*x^4n]
=x^(12n-4n)/(3^4*4)
=x^(8n)/(3^4*4)
=[x^(2n)]^4/(3^4*4)
=3^4/(3^4*4)
=1/4
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