`cos^(2)(97.5^(@))-sin^(2)(37.5^(@))` is equal to-

sin^(2)17.5^(@) +sin^(2)72.5^(@) is equal to:

sin^(2)17.5^(@) + sin^(2)72.5^(@) is equal to

sin^(2)17.5^(@)+sin^(2)72.5^(@) is equal to

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@)) +sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@)) +sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@))+sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

The expression sqrt(sin^(4)(37.5)^(@)+4cos^(2)(37.5)^(@)) +sqrt(cos^(4)(37.5)^(@)+4sin^(2)(37.5)^(@)) simplifies to

The value of (cos ^(6)5^(@)-15 cos ^(4) 5^(@) sin ^(2)5^(@)+15 cos ^(2)5^(@)sin ^(4) 5^(@)-sin ^(6)5^(@)) is equal to-

" The value of ((sin17^(@))(cos13^(@))+(cos17^(@))(sin13^(@)))/((cos23^(@))(cos37^(@))-(sin157^(@))(sin37^(@))) is equal to

cos 5^(@) - sin 25^(@) is equal to