The value of `cos 57^(@) + sin 27^(@) ` is equal to

The value of cos 15^(@) - sin 15^(@) is equal to

Select and write the correct answer from the given alternatives in each of the following:The value of cos57^@+sin27^@ is equal to….

cos57^(@)+sin27^(@)=

The value of (sin 1950^(@)-cos 1950^(@)) is equal to-

The value of cos57^@+sin27^@ is equal to

The value of (sin x-cos x)/(sin^(3)x) is equal to :

The value of (sin x-cos x)/(sin^(3)x) is equal to :

The value of cos (sin^-1 x + cos^-1 x) is equal to :

Find the value of (cos53^@)/(sin57^@)