Expressing a sin x + b cos x in the form R sin(x+a) or R cos(x+a). Solving equations and finding maxima/minima.
We're writing the full lesson for R sin(x+a) and R cos(x+a). In the meantime, check the specification below and try the related lessons.
Addition formulae for sin(A±B), cos(A±B), tan(A±B). Double angle formulae and their applications.