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September 21st, 2017, 03:42 AM   #1
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From: Lahore

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Finding the factor with which length increases

I want to prove that if there is a change in angle, length in y changes with the factor: sec φ.

A and B are points on curved surface, two lines are extended through origin to a line that is tangent to the circle, these points are A' and B', change in Angle will bring a change in length between A' and B'. I need to know how is this do-able.maths (2).jpg
Wasif Jalal is offline  
September 21st, 2017, 05:18 AM   #2
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The reply here gives what can be done.
skipjack is offline  

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factor, finding, increases, length

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