-27(a)^3n与(2m-5)a^n互为反数,求(m-2n/2)^n的值
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![-27(a)^3n与(2m-5)a^n互为反数,求(m-2n/2)^n的值](/uploads/image/z/3809803-67-3.jpg?t=-27%28a%29%5E3n%E4%B8%8E%EF%BC%882m-5%EF%BC%89a%5En%E4%BA%92%E4%B8%BA%E5%8F%8D%E6%95%B0%2C%E6%B1%82%EF%BC%88m-2n%2F2%EF%BC%89%5En%E7%9A%84%E5%80%BC)
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-27(a)^3n与(2m-5)a^n互为反数,求(m-2n/2)^n的值
-27(a)^3n与(2m-5)a^n互为反数,求(m-2n/2)^n的值
-27(a)^3n与(2m-5)a^n互为反数,求(m-2n/2)^n的值
-27(a)^3n+(2m-5)a^n=0
2m-5=-27
2m=-22
m=-11
3n=n
2n=0
n=0
(m-2n/2)^n
=(m-2n/2)^0
=1