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Trigonometry Summary, Cheat Sheet of Mathematics

Mathematics

Cheat sheet for trigonometric identities

Typology: Cheat Sheet

2020/2021

Uploaded on 07/10/2021

spencer-rv-sahagun 🇵🇭

1 document

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Precalculus Quarter 2: Trigonometry | 1 Made by: RV Sahagun

Precalculus Quarter 2: TRIGONOMETRY

Formulas to Remember

THE UNIT CIRCLE

These are special angles in standard position with the indicated terminal sides.

Here is a summary table of special angles with their degree to radian

conversion:

Degree

Radian

Degree

Radian

30°

𝜋

210°

7𝜋

45°

𝜋

225°

5𝜋

60°

𝜋

240°

4𝜋

90°

𝜋

270°

3𝜋

120°

2𝜋

300°

5𝜋

135°

3𝜋

315°

7𝜋

150°

5𝜋

330°

11𝜋

180°

𝜋

360°

2𝜋

The figure below shows some special angles in standard position with the

indicated terminal sides. The degree and radian measures are also given.

Partial preview of the text

Download Trigonometry Summary and more Cheat Sheet Mathematics in PDF only on Docsity!

Precalculus Quarter 2: TRIG ON O M ETR Y

Formulas to Remember

THE UNIT CIRCLE

These are special angles in standard position with the indicated terminal sides.

Here is a summary table of special angles with their degree to radian

conversion:

Degree Radian Degree Radian

The figure below shows some special angles in standard position with the

indicated terminal sides. The degree and radian measures are also given.

CIRCULAR FUNCTIONS

Here is a table summary of special angles with its corresponding coordinates:

Degree Coordinates sin 𝜽 cos 𝜽 tan 𝜽 csc 𝜽 sec 𝜽 cot 𝜽

𝜃 ( x , y ) y x

0 (1,0) 0 1 0 und 1 und

90 (0,1) 1 0 und 1 und 0

180 (− 1 , 0 ) 0 − 1 0 und − 1 und

270 ( 0 , − 1 ) − 1 0 und − 1 und 0

360 (1,0) 0 1 0 und 1 und

TRIGONOMETRIC IDENTITIES

1. Reciprocal Identities:

sin 𝜃 =

csc 𝜃

csc 𝜃 =

sin 𝜃

cos 𝜃 =

sec 𝜃

sec 𝜃 =

cos 𝜃

tan 𝜃 =

cot 𝜃

cot 𝜃 =

tan 𝜃

2. Cofunction Identities:

sin 𝜃 = cos (

− 𝜃) cos 𝜃 = sin (

sec 𝜃 = csc (

− 𝜃) csc 𝜃 = sec (

tan 𝜃 = cot (

− 𝜃) cot 𝜃 = tan (

Trigonometry Summary, Cheat Sheet of Mathematics

Related documents

Partial preview of the text

Download Trigonometry Summary and more Cheat Sheet Mathematics in PDF only on Docsity!

Precalculus Quarter 2: TRIG ON O M ETR Y

THE UNIT CIRCLE

CIRCULAR FUNCTIONS

TRIGONOMETRIC IDENTITIES