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Jimmy
Posts:
6
Registered:
2/18/06
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Re: Trigonometry challenge
Posted:
Feb 19, 2006 9:10 AM
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I would like to see the solutions to the following problems. The first problem is representative of the type of problem a elementary student is expected to solve; whereas the second problem is simple physics problem that a high school student should be able to solve.
1. Given the spread between lines L1 and L2 is 1/3, and the spread between L2 and L3 is 1/5, using only rational trigonometry (without using linear angles), what is the spread between L1 and L3? Compare this solution to a similar problem in classical trigonometry where two angles are given in degrees, and one is asked to find their sum.
2. A wheel with a 1 meter radius is rolled along a horizontal surface. Again, using only rational trigonometry, find a general expression that determines the horizontal distance in meters that the wheel has traveled as it is rotated by any given amount.
Please provide a link to your website that shows the solutions including all steps.
Thank you
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