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May 22, 2015

Homework Help: Maths

Posted by Shane on Monday, April 29, 2013 at 3:11pm.

An aircraft which is maintaining a constant altitude of 1000 metre is travelling directly away from an observer. At a particular instant the angle of elevation is 52 degree and 12 seconds later the angle of elevation is 16 degree. Find the distance travelled in this time.

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