Can someone please help me solve this identity? I need all steps. I really just do not understand it :/ thank you ! sin^4 β - cos^4 β = 1 - 2cos^2 β
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I mean *PROVE this identity. using trigonometric identities :|
Originally Posted by dlngoal Can someone please help me solve this identity? I need all steps. I really just do not understand it :/ thank you ! sin^4 β - cos^4 β = 1 - 2cos^2 β [ ] [ ] ]
You are a life saver thank youu
Originally Posted by dlngoal You are a life saver thank youu haha! Am I really?
Yess! You are! haha
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