(1.)(31°40′-25°4′30〃)×3+28′3〃×2=? (2.)175°16′30〃-47°30′÷6=? 要过程!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 15:20:48
![(1.)(31°40′-25°4′30〃)×3+28′3〃×2=? (2.)175°16′30〃-47°30′÷6=? 要过程!](/uploads/image/z/1633984-16-4.jpg?t=%EF%BC%881.%EF%BC%89%EF%BC%8831%C2%B040%E2%80%B2-25%C2%B04%E2%80%B230%E3%80%83%EF%BC%89%C3%973%2B28%E2%80%B23%E3%80%83%C3%972%3D%3F+%EF%BC%882.%EF%BC%89175%C2%B016%E2%80%B230%E3%80%83-47%C2%B030%E2%80%B2%C3%B76%3D%3F+%E8%A6%81%E8%BF%87%E7%A8%8B%21)
(1.)(31°40′-25°4′30〃)×3+28′3〃×2=? (2.)175°16′30〃-47°30′÷6=? 要过程!
(1.)(31°40′-25°4′30〃)×3+28′3〃×2=? (2.)175°16′30〃-47°30′÷6=? 要过程!
(1.)(31°40′-25°4′30〃)×3+28′3〃×2=? (2.)175°16′30〃-47°30′÷6=? 要过程!
31°40′-25°4′30〃=6°35′30〃
6°35′30〃*3=19°46′30〃
28′3〃*2 = 56′6〃
所以第一题答案为:20°42′36〃
47°30′÷6= 7 °55′
175°16′30〃-7 °55′=167°21′30〃
第二题答案为:167°21′30〃