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April 11, 2026, 05:03:50 pm
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Author Topic: Trig equations  (Read 811 times)  Share 

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itsMRPHI

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Trig equations
« on: November 04, 2010, 12:26:10 pm »
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I'm having trouble getting solutions where there is a negative domain involved. I can solve perfectly fine when its only a positive domain. Any tips? cheers
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Studyinghard

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Re: Trig equations
« Reply #1 on: November 04, 2010, 12:33:49 pm »
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Do the same thing you do when you go in a positive direction but put a minus to all the answers when you're done
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TrueTears

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Re: Trig equations
« Reply #2 on: November 04, 2010, 10:14:13 pm »
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Quote from: itsMRPHI on November 04, 2010, 12:26:10 pm
I'm having trouble getting solutions where there is a negative domain involved. I can solve perfectly fine when its only a positive domain. Any tips? cheers
Just remember that when you have a negative domain, do the same thing but keep subtracting periods to get answers in the required domain.
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