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cos12+cos84+cos156+cos132...

cos12+cos84+cos156+cos132

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Find the value of cos12^0+cos84^0+cos156^0+cos132^0

Find the value of cos12^0+cos84^0+cos156^0+cos132^0

Find the value of cos12^0+cos84^0+cos156^0+cos132^0

cos12^@ cos24^@ cos36^@ cos 48^@ cos 72^@ cos 84^@ is equal to:

cos 12^@ + cos 84^@ + cos 132^(@) + cos 156^(@)=

Evaluate : cos12^@cos24^@cos36^@cos48^@cos72^@cos84^@

Show that (cos 8 A cos 5A - cos 12 A cos 9A )/( sin 8 A cos 5A + cos 12 A sin 9A ) = tan 4A

Find the value of cos12^(0)+cos84^(@)+cos156^(@)+cos132^(@)