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Math Forum » Discussions » sci.math.* » sci.math.independent

Topic: ------- ------- ------- A Trigonomertic function
Replies: 15   Last Post: Aug 29, 2012 5:19 PM

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Scott Berg

Posts: 1,256
Registered: 12/12/04
Re: ------- ------- ------- A Trigonomertic function
Posted: Aug 29, 2012 10:46 AM
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"david" <dlee753@yahoo.com> wrote in message
news:71a62a4a-0f4b-4b8e-b71b-0c739ee018dc@googlegroups.com...
> Consider the following expression for the given conditions.
>
> R = [(sinwD)^2/w + (coswD)^2/w] (1)
>
> w is an integer 5 < w < 41 and R is real > 0 and 0 < D < pi/2
>
> Assertion: 0 < R < 1
>
> Any comment about the correctness of the assertion will be appreciated.
> A numerical example will be very helpful.
>
> What happens when w is very very large compared to 41?


simplify (1) above;

R = (1/w)*[(sinwD)^2 + (coswD)^2] = 1/w

is 0< 1/5 to 1/41 < 0 ?

trivial.


do your own maths





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