`cos 55^(@) + cos 65^(@) + cos 175^(@)=`A)0B)1C)`sin 18^(@)`D)`cos 36 – InterviewSolution

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1.	`cos 55^(@) + cos 65^(@) + cos 175^(@)=`A)0B)1C)`sin 18^(@)`D)`cos 36 ^(@)`
Answer» Correct Answer - A

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