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8cos10^(@)cos20^(@)cos40^(@)sin417root(7...

8cos10^(@)cos20^(@)cos40^(@)sin417root(7)(10)

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Find the value of 8 cos10^(@)cos20^(@)cos40^(@) .

What is the value of ((cos10^(@)+sin20^(@)))/((cos20^(@)-sin10^(@))) ?

sin20^(@)*cos40^(@)+cos20^(@)*sin40^(@)=(sqrt(3))/(2)

(2cos40^(@)-cos20^(@))/(sin20^(@))

(2cos40^(@)-cos20^(@))/(sin20^(@))

cos20^(@)cos40^(@)-sin5^(@)sin25^(@)=

cos20^@cos40^@cos80^@=

Prove that (sin20^(@) + sin40^(@)) + (cos20^(@) + cos40^(@))=(sqrt(3)+1)cos10^(@)

Prove that (sin20^(@) + sin40^(@)) + (cos20^(@) + cos40^(@))=(sqrt(3)+1)cos10^(@)

What is the value of (cos10^(@)-sin10^(@))/(cos10^(@)+sin10^(@)) ?