`(cos 15^(@) + sin 15^(@))/(cos 15^(@) - sin 15^(@)) = `

( sin 75^(@) - sin 15^(@))/( cos 15^(@) - cos 75^(@))=

(sin 75^(@) - sin 15 ^(@))/( cos 75^(@) + cos 15 ^(@)) = (1)/(sqrt3)

2 sin 25^(@) cos 15^(@)=

sin 15^(@) + cos 105 ^(@) =

(cos15^(@)+sin15^(@))/(cos15^(@)-sin15^(@))=(i)1(ii)sqrt(3)(iii)(1)/(sqrt(3))(iv)2+sqrt(3)

sin15^(@)+cos105^(@)=?

Evalute |(cos 15^(@) sin 15^(@)),(sin 75^(@) cos 75^(@))|

Which one of the following number (s) is/are rational? - 1) sin 15^(@) 2) cos 15^(@) 3) sin 15^(@) cos 15^(@) 4) sin15^(@) cos 75^(@)

sin 15^(@) + cos 105 ^(@) = ............ A) 0 B) 2 sin 15 ^(@) C) cos 15^(@) + sin 15^(@) D) sin 15^(@) - cos 15^(@)