addition and subtraction formulae

Trigonometry addition and subtraction formulas are used to find the trigonometric functions of the sum or difference of two angles. There are several formulas for each of the six trigonometric functions: sine, cosine, tangent, cosecant, secant, and cotangent. Here are the trigonometry addition and subtraction formulas: sin(A+B) = sin(A)cos(B) + cos(A)sin(B) sin(A-B) = sin(A)cos(B) –…