Convert the following products into sum or difference If angles are given in degrees, evaluate from tables 2 sin - Maths - Trigonometric Functions

Question

Convert the following products into sum or difference If angles are
given in degrees, evaluate from tables 2 sin 54 degrees sin 66
degrees?

Manbar Singh · Accepted Answer

2 sin 54° 
 sin 66°=2 sin 66° 
 sin 54°=cos66°-54° - cos66°+54°=cos 12° - cos 120°

Convert the following products into sum or difference. If angles are given in degrees, evaluate from tables 2 sin 54 degrees sin 66 degrees?