can someone help me with prove this problem? I feel really stupid because I know it's easy but my brain is fried at the moment. Thanks!
Prove the identity.
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I assume there are some brackets missing...
Thank you very much. I understand it now.
In such problems, convert everything to the same trig function - if possible - and simplify. Like here, convert the given sec(x) to 1/cos(x) and do some algebraic simplifications (on the fraction).
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