Mathematics, 09.10.2019 00:30 jonloya264
Which are simplified forms of the expression cot^2θcos2θ. select two of the following there must be two selections!
Answers: 2
![cot^2(\theta)cos(2\theta) = \frac{cos^2(\theta)}{sin^2(\theta)}[1-2sin^2(\theta)]\\\\cot^2(\theta)cos(2\theta) = \frac{cos^2(\theta)[1-2sin^2(\theta)]}{sin^2(\theta)}\\\\cot^2(\theta)cos(2\theta) =cot^2(\theta) - 2\frac{cos^2(\theta)[sin^2(\theta)]}{sin^2(\theta)}\\\\cot^2(\theta)cos(2\theta) =cot^2(\theta) - 2cos^2(\theta)](/tpl/images/0301/9014/a426b.png)
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Which are simplified forms of the expression cot^2θcos2θ. select two of the following there must be...
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