" Prove that "(1)/(cos290^(@))+(1)/(sqrt(3)sin250^(@))=(4)/(sqrt(3))

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Prove that (1)/(cos 290^(@))+(1)/(sqrt3 sin 250^(@) )=(4)/(sqrt3)

(1)/(cos290^(@))+(1)/(sqrt(3)sin250^(@)) is equal to

The value of (1)/(cos290^(@))+(1)/(sqrt(3)sin250^(@)) is

The greatest integer less than or equal to (1)/(cos290^(@))+(1)/(sqrt(3)sin250^(@)) is

The value of (1)/(cos290^(@))+(1)/(sqrt3sin250^(@)) is equal to

Expression (1)/(cos 290^(@)) + (1)/(sqrt(3) sin 250^(@)) equals

Find the value of expression (1)/(cos290^(@))+(1)/(sqrt(3)sin250^(@))

The greatest integer less than or equal to (1)/(cos 290^(@))+(1)/(sqrt(3)sin 250^(@)) is _________

Prove that cos 20^(@) cos 40^(@) - sin5^(@) sin 25^(@) = (sqrt(3)+1)/(4) .