(22k+1)/(k-1)=(22(k-1)+23)/(k-1)=22+23/(k-1)
知道也不告诉你!!你这个大笨蛋!!!!笨得要死!!比猪还笨!我靠!!!!!!!!!!!
(22k+1)/(k-1(22k-22)+23/(k-122+23/(k-1)