Recommended Questions
- cos40+cos80+cos160 +cos 240
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- cos 20^@ cos 40^@ cos 80^@=
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- cos40 + cos80 + cos160 + cos240
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- Prove that cos2 0^(@)cos4 0^(@)cos6 0^(@)cos8 0^(@)=1/16
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- if sin2 A = 2sin A cosA and sin 20^@ = K, then the value of cos 20^@ c...
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- cos20 ^ (@) + cos40 ^ (@) + cos60 ^ (@) ............ + cos160 ^ (@) + ...
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- cos 20^@.cos 40^@.cos 60^@ cos 80^@=
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- Prove that: cos40^0cos80^0cos 160^0=\ -1/8
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- The value of cos40^(@)+cos80^(@)+cos160^(@) is
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