求函数y=(log1/3x)²+log1/3x的单调递减区间.

求函数y=(log1/3x)²+log1/3x的单调递减区间.
求函数y=(log1/3x)²+log1/3x的单调递减区间.

求函数y=(log1/3x)²+log1/3x的单调递减区间.
y=(log3x-1/2)²-1/4
∴当log3 x>1/2,即x>√3时,单调递增；x