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August 21st, 2018, 09:51 AM   #1
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Solve this Trig Identity

cot^2a = cos^2a + cota*cosa
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August 21st, 2018, 11:27 AM   #2
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assuming you mean

$\cot^2(a) = \cos^2(a)+\cot(a)\cos(a)$

this doesn't appear to be true
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August 21st, 2018, 11:51 AM   #3
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I also did not think so. I think it is a typo.
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August 21st, 2018, 04:08 PM   #4
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Were you supposed to be proving an identity or solving an equation?
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