1个回答
展开全部
15/(1-5/60)
=15/(1-1/12)
=15/(11/12)
=15*(12/11)
=180/11
=16又(4/11)分
(15+30)/(1-5/60)
=45/(1-1/12)
=45/(11/12)
=45*(12/11)
=540/11
=49又(1/11)分
(15+15)/(1-5/60)
=30/(1-1/12)
=30/(11/12)
=30*(12/11)
=360/11
=32又(8/11)分
在3时和4时之间的哪个时刻,钟的时针和分针 (1)重合:3时16又(4/11)分
(2)成平角:3时49又(1/11)分
(3)成直角:3时32又(8/11)分
=15/(1-1/12)
=15/(11/12)
=15*(12/11)
=180/11
=16又(4/11)分
(15+30)/(1-5/60)
=45/(1-1/12)
=45/(11/12)
=45*(12/11)
=540/11
=49又(1/11)分
(15+15)/(1-5/60)
=30/(1-1/12)
=30/(11/12)
=30*(12/11)
=360/11
=32又(8/11)分
在3时和4时之间的哪个时刻,钟的时针和分针 (1)重合:3时16又(4/11)分
(2)成平角:3时49又(1/11)分
(3)成直角:3时32又(8/11)分
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询