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TT α Given that cosa = 3 4 and 0 <« <z, determine the exact value of cos z α COSE cos 2 (Simplify your answer, including any
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Ans! 3 Cosa= A 2 4 Given that and 0<x< we have to find value of cosa we know that == Cara 2 Cos x 2 Itosa 1+ ( = + 4 2 - +1 4 From question ㅈ 4 0<x< 1 .:O< < value of cosa porttine 슬 커 22 is always a Cos Cosa ㅋ litla cosa = √7 Ans ¿

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