(15-2*5-15*(5/60))*(360/60)
=(15-10-15*(1/12))*6
=(5-15/12)*6
=30-7.5
=22.5度
=22度30分
时钟指示2点15分,它的时针和分针所成的锐角是(22)度(30)分(0)秒.