现有某类病毒记作XmYn,其中正整数m,n(m≤7,n≤9)可以任意选取,则m,n都取到奇数的概率为 .
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=________________.
=_________________.
）+(x2+
)+(x3+
)+…+(x2 010+
)的值等于_________________.
3n)×log9
=________________.
=_________________.）+(x2+)+(x3+)+…+(x2 010+)的值等于_________________.
粤公网安备 44130202000953号