11th Grade Pythagorean Identities Quizzes, Questions & Answers

11th Grade

Top Trending Pythagorean Identities Quizzes

Go from “know it” to “show it.” You’ll prove sin²θ + cos²θ = 1 from the unit circle, generate the derived forms (1 + tan²θ = sec²θ and 1 + cot²θ...

Questions: 20 | Attempts: 16 | Last updated: Nov 19, 2025

Sample Question 1
Which expression equals 1 by the Pythagorean identity?

Sin²θ + cos²θ

Tan²θ + 1

Sin²θ − cos²θ

Sec²θ − 1

Sample Question 2
If sinθ = 3/5 and θ is in Quadrant II, what is cosθ?

4/5

−3/5

3/5

−4/5

Sample Question 3
If cosθ = −12/13 and θ is in Quadrant III, what is sinθ?

5/13

12/13

−5/13

−12/13

Trigonometric Equations & Identities- Assessment Quiz

How much do you know about trigonometric equations and identities? A trigonometric identity includes trigonometric functions and is valid for each value of the happening variables where the two sides of the equality are...

Questions: 10 | Attempts: 525 | Last updated: Mar 21, 2025

Sample Question
Equalities that involve trigonometric functions and are true for every value of the occurring variables are called...

Trigonometric identities

Numeric values

Identities

Values