What is the definition of $$\sec\theta$$ ?

$$\sec\theta = \frac{1}{\cos\theta}$$ .

What is the definition of $$\csc\theta$$ ?

$$\csc\theta = \frac{1}{\sin\theta}$$ .

What is the relationship between $$\tan\theta$$ and $$\sin\theta$$ , $$\cos\theta$$ ?

$$\tan\theta = \frac{\sin\theta}{\cos\theta}$$ .

What is the definition of $$\cot\theta$$ ?

$$\cot\theta = \frac{1}{\tan\theta} = \frac{\cos\theta}{\sin\theta}$$ .

What is the identity for $$\tan²\theta + 1$$ ?

$$\tan²\theta + 1 = \sec²\theta$$ .

What is the identity for $$\cot²\theta + 1$$ ?

$$\cot²\theta + 1 = \csc²\theta$$ .

If $$\tan\theta = 3$$ , what is $$\sec²\theta$$ ?

$$\sec²\theta = 1 + \tan²\theta = 10$$ .

Trig Identities Practice Flashcards

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15 questions

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1.

FLASHCARD QUESTION

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2.

FLASHCARD QUESTION

Front

Solve for cos²θ: sin²θ + cos²θ = 1

Back

3.

FLASHCARD QUESTION

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4.

FLASHCARD QUESTION

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5.

FLASHCARD QUESTION

Front

Solve for tan²θ: 1 + tan²θ = sec²θ

Back

6.

FLASHCARD QUESTION

Front

Define the Pythagorean Identity: sin²θ + cos²θ = ?

Back

1.

7.

FLASHCARD QUESTION

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