`cos ec15^@ + sec15^@=`

cosec15^(@)+sec15^(@)=

"cosec" 15^(@) + sec 15^(@) =

cos ec31 ^ (@) - sec59 ^ (@)

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

The value of (cos 15^(@) - sin 15^(@))/(cos 15^(@) + sin 15^(@) is

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

Show that sqrt(3)cos ec20^(@)-sec20^(@)=4

Show that sqrt(3)cos ec20^(@)-sec20^(@)=4