【点赞泉城蓝,共建美面家园】
已知定义在R上的函数fx、gx满足fxgx=ax,且f'xgx<fxg'x, f1g1+f-1g-1=52,若有穷数列fngn(n∈N*)的前n项和等于3132,则n等于( )
The man you referred to to be an honest man.