若a^(3/5)
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若a^(3/5) 若a^(3/5)
若a^(3/5)
指数函数,且为减函数,所以a∈(0,1)
若a*a+3a-1=0,则a*a*a+5a*a+5a+18=?可将平方立方写成简写
集合A{a+2,(a+1)^2,a^2+3a+3} B{a+b,1,a-b+5} 若A=B,求a,bSD
若a^2+a+1=0,求a+a^2+a^3+a^4+a^5+a^6+……+a^2013得值
若a^2+a+1=0,求a+a^2+a^3+a^4+a^5+a^6+…+a^2013的值
若a^2+a+1=0,求a+a^2+a^3+a^4+a^5+a^6…+a^2013的值
对任意自然数a,b,规定a#b=2*a+b,若a#2a#3a#4a#5a#6a#7a#8a#9a=3039,则A=()
5a-a*a+[5a*a-3a]-6*[a*a-a]
若a小于0,化简|5a+|a||/3
若2a-3>a-6,11a-5
若a²+3a+1=0,a四次方+3a³-a²-5a+a分之1-2求a四次方+3a³-a²-5a+a分之1-2
A={2,4,a²-2a+3},B={a+1,a²-4a+2,a²-3a+4,a²-5a+3}若A∩B={2,3}求A∪B
已知集合A={1,4,a²-2a},B={a-2,a²-4a+2,a²-3a+3,a²-5a},若A∩B={1,3}则A∪B=?
对任意自然数a,b,规定a#b=2*a+b,若a#2a#3a#4a#5a#6a#7a#8a#9a=2026
已知集合A有两个元素:a-2 2a^2+5a 若-3∈A求a值
定义a b=2a+b,若有a 2a 3a 4a 5a=114,求a的值
定义a*b=2a+b,若a*2a*3a*4a*5a=114,则a=_______.
9a*a*a*a-()=(3a*a+5c)(3a*a-)
a-2a+3a-4a+5a-6a+...+99a-100a