# Simplifying Trigonometric Expressions

Video lessons with examples and solutions to help High School Algebra II students learn to simplify trigonometric expressions.

Simplifying Trigonometric Expressions
sin θ + cos θ cot θ
Simplifying trig expressions
(1 + tan x)/(1 + cot x)

cos α + tan α sin α
Simplifying Trigonometric Expressions Using Identities, Example 1
tan3x • csc 3x

Simplifying Trigonometric Expressions Using Identities, Example 2
sec x • cos x - cos2x = sin2x
(csc2x - 1)(sec2x sin2x) = 1
Simplifying Trigonometric Expressions Using Identities, Example 3
(csc2x - 1)/csc2x
(csc2θ - cot2θ)/tan2θ - sec2θ)

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