FLASHCARD 4.1 - 4.2 (Part 1)- Simplify Trig Expressions w/ Identities

Front

What is the identity for \( \tan x \)?

Back

\( \tan x = \frac{\sin x}{\cos x} \)

Front

What is the identity for \( \cot x \)?

Back

\( \cot x = \frac{\cos x}{\sin x} \)

Front

What is the Pythagorean identity involving sine and cosine?

Back

\( \sin^2 x + \cos^2 x = 1 \)

Tags

CCSS.HSF.TF.C.8

Front

What is the identity for \( \sec x \)?

Back

\( \sec x = \frac{1}{\cos x} \)

Front

What is the identity for \( \csc x \)?

Back

\( \csc x = \frac{1}{\sin x} \)

Front

Simplify: \( \cos x (\tan x + \cot x) \)

Back

\( \csc x \)

Front

Simplify: \( \sin^2 \theta + \tan^2 \theta + \cos^2 \theta \)

Back

\( \sec^2 \theta \)

Front

Simplify: \( \sec \theta \cot \theta \sin \theta \)

Back

\( 1 \)

Front

Simplify: \( \tan x \cot x - \cos^2 x \)

Back

\( \sin^2 x \)

Front

Simplify: \( \sin \theta (\csc \theta - \sin \theta) \)

Back

\( \cos^2 \theta \)