We explore an application of the t-substitution as a way to solve equations involving trig functions. We begin with a derivation of the t-formulae, then use them solve the equation cosecθ + cotθ = (sinθ + sin(2θ))/(1 - cosθ)
00:00 Intro
00:43 Derivation
03:07 The equation
04:35 Using the t-substitution
08:07 Solving the polynomial equation
10:00 Solving the original equation
11:17 Finding all solutions