If a and b are the greatest value of the function f(x) = cos x + 1/2 cox 2x – 1/3 cos 3x

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If a and b are the greatest and the least value of the function

f(x) = cos x + 1/2 cos 2x + 1/3 cos 3x, then a+b = ?


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Mathematics Nageshwar Rathore 5 months 1 Answer 129 views 0

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