计算 (37°48'+45.36°-14.28')x3170°12'/7(精确到秒)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/05 04:21:48
计算 (37°48'+45.36°-14.28')x3
170°12'/7(精确到秒)
(37°48'+45.36°-14.28')x3
= (37.6°+45.36°-14.28')x3
=64.68°x3
=194.04°
=194°2'24''
170°12'/7
=168°132'/7
=168°126'360''/7
≈24°18'51''
(37°48'+45.36°-14.28')x3
=(37.8°+45.36°-14.28°)x3
=68.88°3x3
=206.64°
170°12'÷7
=168°132'÷7
=168°126'360''÷7
≈24°18'51''
14.28'???有点麻烦啊
125
(37°48'+45.36°-14.28')x3
=(37°48'+45°+21.6‘-14’+16.8‘’)x3
=(37°48'+45°+21‘+36‘’-14’-16‘’-0.8’‘)x3
=(82°55’20‘’-0.8‘’)×3
=246°165‘60’‘-2.4’‘
=248°46’-2‘’ //剩下的0.4‘’舍去了
=2...
全部展开
(37°48'+45.36°-14.28')x3
=(37°48'+45°+21.6‘-14’+16.8‘’)x3
=(37°48'+45°+21‘+36‘’-14’-16‘’-0.8’‘)x3
=(82°55’20‘’-0.8‘’)×3
=246°165‘60’‘-2.4’‘
=248°46’-2‘’ //剩下的0.4‘’舍去了
=248°45‘58’‘
170°12'/7=10212’/7=612720‘’/7=87531‘’=1458‘51‘’=24°18’51‘’
收起
计算 (37°48'+45.36°-14.28')x3170°12'/7(精确到秒)
计算:44°37′/3=
计算:cos45°=
计算56.27°+23.33°
计算75°的正切值要用三角图计算
26°15’×7计算
计算:160°22'30'
计算值 COS(-2040°)
21°17’*5.计算
计算 25.4°=?秒
计算:cos(-150°)=
计算90°-37°18′42〃
计算150°24’40’’+20°47’37’’
计算:13°29′+78°37′
计算,48°39′+67°31′
计算48°39′+67°41′
tan30°×(14+X)=tan45°X计算过程
计算:44°37′÷3(写过程)