12-6 2 ( x 1 , 4 = ( x ) dr = = [ ( 2 - rodr = f_r ) a . = " r ( conome | tu - 32 = xycos = ( 2-1 十二》 + dx 24 ( ric05 TT dr 4 8 [ 1 - cos ( ptt.21 ] .
確定！ 回上一頁
