Ex: Simplify a Trigonometric Expression: (trig+-trig)/(1+trig) (A) April 19, 2016 mathispower4u IV. Trigonometry Videostrig, expression, simplify, difference, quotient, identities, sine, cosine, sin, cos, trigonometry, james, sousa, mathispower4u This video explains how to simplify a trigonometric expression into one trig function. Rate this:Like Loading... Related