已知复数(为虚数单位),复数,则一个以为根的实系数一元二次方程是________.
若数列{an}为等差数列,a15=8,a60=20,则a75=____________.
等差数列{an}中,a5+a13=46,则a8+a9+a10=_____________.
已知函数f(x)=lg(x+1)(x>0),则f(x)的反函数为________.
已知集合A={x,xy,lg(xy)},B={0,|x|,y},并且A=B,那么(x+)+(x2+)+(x3+)+…+(x2 010+)的值等于_________________.
(log23+log49+log827+…+3n)×log9=________________.