TT 2sin ( x + tik sin ( x + 5 ) = = TT 6 + 2nt , 2 151 152 sin2x + 3cos x = 0 ( 0 ) sin ? x = 1 – cos ? x , U 2 ( 1 - cos ? x ) + 3cos x = 0 :: .
確定! 回上一頁