Recommended Questions
- Prove that: cos20^(@)cos40^(@)cos80^(@)=1/8
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- Prove that: cos20^0cos40^0cos60^0cos80^0=1/(16)
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- Prove that cos20^0cos40^0cos60^0cos80^0=1/(16)dot
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- Prove that: \ cos 20^0cos 40^0cos 80^0=1/8
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- Prove that: cos 80^0+cos 40^0-cos 20^0=0
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- Find : cos 20^0cos 40^0cos 60^0cos 80^0
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- Prove that: cos20^(@)cos40^(@)cos80^(@)=1/8
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- सिद्ध कीजिए कि cos20^(@)cos40^(@)cos60^(@)cos80^(@)=(1)/(16).
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- Prove that cos20^(@) cos40^(@) cos80^(@) = 1/8
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