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Tangent Identity and Pythagorean Identities

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More Lessons for High School Regents Exam

Math Worksheets

High School Math based on the topics required for the Regents Exam conducted by NYSED.

What are the Reciprocal Identities?
\(\csc \theta = \frac{1}{{\sin \theta }},\sec \theta = \frac{1}{{\cos \theta }},\cot \theta = \frac{1}{{\tan \theta }}\)

What are the Quotient Identities or Tangent Identities?
\(\tan \theta = \frac{{\sin \theta }}{{\cos \theta }},\cot \theta = \frac{{\cos \theta }}{{\sin \theta }}\)

What are the Pythagorean Identities?
\({\sin ^2}\theta + {\cos ^2}\theta = 1,{\tan ^2}\theta + 1 = {\sec ^2}\theta ,1 + co{t^2}\theta = {\csc ^2}\theta \)

Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities
Simplifying a Trigonometric Expression Using Trigonometric Identities

Trigonometric Identities Pythagorean Identities
Identities 3 - Pythagorean Identities Proof


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