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Simplifying a trigonometric binomial

Thread starter Ry122
Start date Apr 11, 2008
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Binomial Simplifying Trigonometric

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1 reply · 3K views

Ry122

Thread starter
Apr 11, 2008

#1

Is this correct?
(bcos30-85.7)(bcos30-85.7)=b²cos²30-85.7cos30-85.7bcos30+85.7²

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Snazzy

Apr 11, 2008

#2

You're missing a b term for 85.7cos30 and then you have to simplify.

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