Cos24+cos55+cos125+cos204+cos300=
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Answer:
Cos24 + cos55 + cos125 + cos204 + cos300 = ½
Step-by-step explanation:
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
hope it's help you
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