(16A^2)^3•(1/8)^4=9,A^12=__.
a^2-3a __ __=2a^2 2a
分解因式:(1)a^2+3a+2=_________(2)a^2-3a+2=________(3)a^2+9a+8=__
3a+2b=3,则8-6a-4b=__
thinks a lot=thinks __ __
已知1÷A=0.0909…;2÷A=0.1818…;3÷A=0.2727…;4÷A=0.3636…;那么9÷A的商是__
当a=__时,最简二次根式根号2a-1,-根号3a-7可以合并
已知 log (a) ab=1/p ,则 log (ab) a/b=__ __.
已知直角坐标系A(2,-3)B(4,-1)若C(a+3,0)是X轴两动点,则a=__时,四边形ABCD的周长最短.
若定义数组int a[]={1,2,3,4,5,6};则此数组元素a[a[2]]的值为__
1.设全集U={3,2a-1,a^2-a+2},若集合A={3,a+2},CuA={8},则实数a的值是__
This is my own bag.=This is a __ __ __ __
定义新运算a&b=2a+b,a@b=a×b×b,则4&(3@2)=__