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Simplify

 Apr 18, 2020
 #1
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0

Use www.mathway.com/precalc

 

Its a good site calculator.

 Apr 18, 2020
 #2
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It just says undefined on that website sad

Guest Apr 18, 2020
 #3
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+1

\(\frac{cos(-\theta)cot(-\theta)}{cosec(\theta)}\\ =cos(\theta)*\frac{cos(-\theta)}{sin(-\theta)}\div\frac{1}{sin(\theta)}\\ =cos(\theta)*\frac{cos(\theta)}{-sin(\theta)}*\frac{sin(\theta)}{1}\\ =-cos^2(\theta)\)

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 Apr 21, 2020

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