Trig Functions Flashcards by Dorina Cassidy

Q

Tangent

A

OPP/ADJ

Y/X

Cotangent

Symmetric around origin - period π

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Q

Cosine

A

ADJ/HYP

x

Secant

Start (0,1) - Period 2π

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Q

Sine

A

OPP/HYP

y

Cosecant

Start (0,0) - Period 2π

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Q

π/6

A

30 (√3/2, 1/2)

Tangent √3/3

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Q

π/4

A

45 ( √2/2, √2/2)

Tangent 1

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Q

π/3

A

60 ( 1/2, √3/2)

Tangent √3

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Q

0, 90, 180, 360

A

0 (1,0) Tangent 0

90 (0,1) Tangent Undefined

180 (-1, 0) Tangent 0

360 (1,0) Tangent 0

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Q

Secondary Trig Functions

A

CSC h/y 1/SIN

SEC h/x 1/COS

COT x/y 1/TAN

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Q

Pythagorean identities

A

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Q

Double Angle

A

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Q

Half Angle

A

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Q

Addition

Subtraction

A

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