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

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

The expression sqrt(sin^4 1^@+2+2cos 2^@)+sqrt(cos^4 1^@-2cos2^@+2) simplifies to :-

The value of cos(127.5^(@))*cos(7.5^(@))-cos(37.5^(@)).sin(187.5^(@)) is

The value of cos^2 37^@-sin^2 53^@ is

Establish cot 53^@ sin 37^@ sec 53^@ sin 53^@ cot 37^@ = cos 37^@

The value of (cos53^(@)-sin37^(@)) is

Find the resultant of the following forces. [sin 37^(@) = (3)/(5) ,cos 37^(@) = (4)/(5) , sin 53^(@) = (4)/(5) , cos 53^(@) = (3)/(5)]