hi, does anyone have any useful resources for Trigonometric identities? [C2] Watch

theguywhosaidhi
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For example, sin^2theta + cos^2theta = 1? I have no idea about this because I missed a couple days at school. I know generally you have to rearrange the EQ to get whatever the question states, but I don't know the identities you need for CORE 2. Any help is reallyyyyy appreciated and good luck for your exams!
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IrrationalRoot
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You should derive all of them yourself.
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Jokes, just look up your exam board syllabus for C2 .
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Math12345
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I think you only need to know:

\frac{\sin(x)}{\cos(x)} = \tan(x) and

\sin^2(x) + \cos^2(x) = 1

But make sure you are able to rearrange these so you can use them in questions.
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