alex_sydney
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- Feb 20, 2012
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- 2013
this question is from Coroneos Maths EXT1 Vol.2 p.25 Q17
The side of a Hill faces due South and is inclined to the horizon at an angle "a". A straight railway upon it is inclined at an angle "b" to the horizon. If the bearing of the railway is "r" degree East of North, show that cos r = cot a tan b.
if possible, plz provide the 3D diagram as well THX!!
The side of a Hill faces due South and is inclined to the horizon at an angle "a". A straight railway upon it is inclined at an angle "b" to the horizon. If the bearing of the railway is "r" degree East of North, show that cos r = cot a tan b.
if possible, plz provide the 3D diagram as well THX!!