Question 1037696
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \sin\theta\ =\ \pm\sqrt{1\ -\ \cos^2\theta}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \cos\theta\ =\ \pm\sqrt{1\ -\ \sin^2\theta}]


You have to choose the sign based on other information given.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \tan\theta\ =\ \frac{\sin\theta}{\cos\theta}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \cot\theta\ =\ \frac{\cos\theta}{\sin\theta}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \sec\theta\ =\ \frac{1}{\cos\theta}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \csc\theta\ =\ \frac{1}{\sin\theta}]


Fractions with zero denominators are undefined.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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