Algebra/Alebra

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Question
How we can solve a cubic equation whose coefficients are lengthy trigonometric functions?(using some shoftware)

Answer
I would use Excel.
Note that it defines sin(), cos(), and tan().
Also note that sec() = 1/cos(), csc() = 1/sin(), and ctn() = 1/tan().

This would generate value.

For solving them, I found an aricle.  It is http://www.dpmms.cam.ac.uk/~wtg10/cubic.html
It is not an easy task and more than I ever learned since it was so complicated.

Algebra

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Scott A Wilson

Expertise

Any algebraic question you've got, like linear, quadratic, exponential, etc.

Experience

solving story problems solving linear, parabolic, and 3rd order equations solving equations with multiple variables

Publications
documents at Boeing

Education/Credentials
MS at math OSU in mathematics at OSU BS at OSU in mathematical sciences (math, statistics, computer science)

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both BS and MS degrees were given with honors

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students from all over since the 80's; over 1,000 in algebra

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