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[22" The complement of "72^(@)40" is "],...

[22" The complement of "72^(@)40" is "],[0107^(@)20^(@)],[027^(@)20^(@)],[017^(@)20^(@)],[012^(@)40^(@)]

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

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

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

The value of tan20^(@)+tan40^(@)+sqrt(3)tan20^(@)tan40^(@) is

tan20^(@)+tan40^(@)+sqrt(3)tan20^(@).tan40^(@)=?

(cos30^(@)-sin20^(@))/(cos40^(@)+cos20^(@))=(4)/(sqrt(3))cos40^(@)cos80^(@)

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

The value of the expression (sin40^(@))/(sin80^(@))+(sin80^(@))/(sin20^(@))-(sin20^(@))/(sin40^(@)) is