Question

cos24 + cos55 + cos125 + cos204 + cos300 = 1/2

Answer 1

⚡lhs =cos 24+cos 55+cos 125+cos 204+cos 300
= cos 24 +cos 55 +cos (180-55)+cos (180-24)+cos(270+30)
= cos 24 +cos 55-cos 55-cos24+sin30
=sin 30
=1/2
=rhs

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Answer 2

$\bold{HEY!!}$
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