RTRT
RT
原式=(2倍根号6-5)*[(2倍根号6+5)(2倍根号6-5)]^2008=(2倍根号6-5)*(-1)^2008=2倍根号6-5
什么题目???? RT. rt RT RT RT RT RT RT RT, rt 、 rt RT RT RT RT RT RT, RT
RT. rt RT RT RT RT RT RT RT, rt 、 rt RT RT RT RT RT RT, RT