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Given that cosa = 2 3 and 0 <a<3 determine the exact value of cosa COS SED (Simplify your answer, including any radicals. Use

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Answer #1

Cosa = 2 0 - Co(을) It cosą uly <2시 대 여 아출표 Quadr- 1+cosa C을 아 || Mula 3 것이 2 어에 1

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