Pre-Calc Course, Lec # 22 (Reduction 'sinx + cosx' Identity)

This is Lecture # 22 of the series of videos called "Pre-Calculus Course". This lecture discusses the Trigonometric "Reduction Formula" with several done examples. Converting the sum of sine & cosine functions INTO a ONLY one SINE function so that it will be easier to graph and find its range At the end of each Pre-Calculus lecture, you find some (Old Exams Questions) to check your knowledge and practice more on that topic.

#usereductionidentity #findrangeofsinpluscosine