Trigonometric Identities

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Flashcards about Trigonometric Identities

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8 Terms

1
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Reciprocal Identity: Cosecant

csc θ = 1 / sin θ

2
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Reciprocal Identity: Secant

sec θ = 1 / cos θ

3
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Reciprocal Identity: Cotangent

cot θ = 1 / tan θ

4
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Tangent Identity

tan θ = sin θ / cos θ

5
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Cotangent Identity

cot θ = cos θ / sin θ

6
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Pythagorean Identity

sin² θ + cos² θ = 1

7
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Pythagorean Identity

1 + tan² θ = sec² θ

8
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Pythagorean Identity

1 + cot² θ = csc² θ