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September 2, 2014

September 2, 2014

Posted by **ritu** on Thursday, November 17, 2011 at 4:47am.

- maths -
**Henry**, Friday, November 18, 2011 at 9:14pmd1=3h * 400mi/h @ 258Deg=1200mi@258Deg.

d2 = 3h * 300mi/h @ 15deg=900km@15deg.

Da = d1 - d2 = Distance apart.

Da = 1200km@258 = 900km@15deg. =

X = hor.=1200cos258 - 900cos15=-1119mi.

Y=ver.= 1200sin258 - 900sin15=-1407mi

tanA = Y/X = -1407/-1119 = 1.2574.

A = 51.5 deg.

A = 51.5 + 180 = 231.5 Deg.

Da = -1119 / cos231.5 = 1798mi apart.

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