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6 Oct 2020
Simplify the expression by using the double-angle formula or a half-angle formula.
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![](https://s3.amazonaws.com/prealliance-textbook-qa.oneclass.com/qa_images/homework_help/question/qa_images/222308907039237/question/1.png?img=2e6b4a27dce581aca82aa3541d12bf1e)
Simplify the expression by using the double-angle formula or a half-angle formula.
Angelo TorrenoLv4
28 Oct 2020
Simplify the expression by using the double-angle formula or a half-angle formula.