big_bang344
Member
- Joined
- May 9, 2011
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- Male
- HSC
- 2013
Can someone help me with this trig question?
From A to B, two railway stations, the line runs south-west. Two spires, 3 km apart are noth N-W of A. From B, the bearings of the spires are N7 and a half degreesE and N37 and a half degreesE. Show that AB = 6sin52and a half degrees cos7 and a half degrees. Find the average speed of the train if it takes 4 minutes to travel from A to B.
From A to B, two railway stations, the line runs south-west. Two spires, 3 km apart are noth N-W of A. From B, the bearings of the spires are N7 and a half degreesE and N37 and a half degreesE. Show that AB = 6sin52and a half degrees cos7 and a half degrees. Find the average speed of the train if it takes 4 minutes to travel from A to B.