" (ii) "sin54^(@)-cos36^(@)=......

cos54^(@)cos36^(@)-sin54^(@)sin36^(@)=0

Evalute (f) (sin36^(@))/(cos54^(@))-(sin54^(@))/(cos36^(@))

Evaluate the following: (cos37^(0))/(sin53^(0))( ii) (tan54^(@))/(cot36^(@)) (iv) (cos ec34^(0))/(sec56^(@))

3 cos 72 ^(@) -4 sin ^(3) 18^(@) = cos 36 ^(@).

Evaluate the following: (i) (cos37^(@))/(sin53^(@))(ii)(sin41^(@))/(cos49^(@))(iii)(tan54^(@))/(cot36^(@))

2 cos 54^(@) * sin 66^(@) =

find the value of sin18^(0) and cos36^(@)

Prove that sin 36^(@) + cos 36^(@) = sqrt(2) cos 9^(@)

Prove that sin 36 ^(@) + cos 36 ^(@) = sqrt2 cos 9^(@).