sin 20 cos 5 + cos 20 sin 5 Find the exact value of the expression sin ( 100 o ) cos ( 55 o ) cos ( 100 o ) sin ( 55 o ) Find the exact value of the expression. cos 15 deg cos 30 deg - sin 15 deg sin 30 deg If g = 1035 degrees, simplify the expression sin^-1 (...