Solving Trig equations-( Square both sides-Multiple Angles)

Solving trig equations using squaring, factoring and using identities.
In this video, we will solve trig identities with square both sides and multiple angles.
00:07 Introduction
00:30 Find all solutions to: cosx + 1 =sinx on interval 0 2 pi
This problem uses square both sides
10:24 This is a multiple angle problem
3 tan x/2 + 3 = 0 with interval 0,2 pi

Everything you need to know about Trig Identities Playlist

[alexcardoso]

For the first problem, 3 pi over 2 is extraneous. Plugging it into the original equation will result in a false statement.