state gov Chhatisgarh (CG) Police Constable Mock Test 2023-24 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
Which of the following options gives an expression equivalent to sin(A + B)?
1
cos A cosB − sin A sin B
2
sin A cos B + cos A sin B
3
cos A cos B + sin A sin B
4
sin A cos B − cos A sin B