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[cos12^(@)+cos84^(@)+cos156^(@)+cos132^(...

[cos12^(@)+cos84^(@)+cos156^(@)+cos132^(@)" का "],[" The value of "cos12^(@)+cos84^(@)+cos156^(@)+]

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cos12^(@)+cos84^(@)+cos132^(@)+cos156^(@)=

cos48^(@)*cos12^(@)=

cos48^(@)*cos12^(@)=

The value of cos12^@+cos84^@+cos156^@+cos132^@ is

cos12^(@)cos24^(@)cos48^(@)cos84^(@)

The value of cos12^(@)+cos84^(@)+cos156^(@)+cos132^(@) is

The value of cos12^(@)+cos84^(@)+cos156^(@)+cos132^(@) is

4 cos 12 ^(@) cos 48^(@) cos 72^(@) = cos 36 ^(@)

The value of cos12^(0)+cos84^(0)+cos156^(@)+cos132^(@)is