Statement I `cos36^(@) gt sin 36^(@)`
Statement II `cos36^(@) gt tan 36^(@)`

Statement-1: cos36^(@)gttan36^(@) Statement-2: cos36^(@)gtsin36^(@)

Find : sin 36^(@) 51'

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

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

Statement I sin ^(-1)(1/sqrte) gt tan^(-1)(1/sqrtpi) Statement II sin^(-1) x gt tan^(-1) y " for " x gt y , AA x, y in (0,1)

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

4 cos 12 ^(@) cos 48^(@) cos 72^(@) = cos 36 ^(@)

Prove that : cos 36 ^(@) - sin 18^(@) = (1)/(2).

Add: 36^(@)53' and 71^(@)34'

If sin36^(@)=p , then find sin 54^(@) in terms of p.