【正文】
)()( l o gl o gxgxfxgxfxgxfaa??????????)()(0)(0)()()( l o gl o gxgxfxgxfxgxfaa對(duì)數(shù)不等式的解法( 0a1)時(shí) ??????????)()(0)(0)()()( l o gl o gxgxfxgxfxgxfaa??????????)()(0)(0)()()( l o gl o gxgxfxgxfxgxfaa例 1:解不等式: ? 310)3)(1(21222122????????????????xx