Trigonometry Formulae: Don’t try to remember just know the concept of derivation With the help of sin (A + B), we can derive all the remaining trigonometric formulae. Let’s see, how ….. Compound Angle (1) (2) (3) (4) (5) Dividing Numerator and Denominator by (6) Similarly, (7) (8) Transformation Formulae: By adding (1) and (2), […]