Practice - Fundamental Identities
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Practice Questions
Test your understanding with targeted questions
What is the hypotenuse of a right triangle with sides 3 and 4?
💡 Hint: Use the Pythagorean theorem.
If sin(30°) = 0.5, what is 1 + tan²(30°)?
💡 Hint: Find tan(30°) and apply the identity.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the result of sin²θ + cos²θ?
💡 Hint: Think about the relationship established by the Pythagorean theorem.
Is 1 + tan²θ = sec²θ a valid trigonometric identity?
💡 Hint: Recall the definitions of trigonometric ratios.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Prove that sec²(θ) - 1 = tan²(θ) using trigonometric identities.
💡 Hint: Move the 1 to the other side.
If sin(θ) = 12/13, find the values of cos(θ), tan(θ), sec(θ), csc(θ), and cot(θ) using identities.
💡 Hint: Use sin²(θ) + cos²(θ) = 1 for finding cos.
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