Trigonometry Unit Circle

sin0° or sin2π

0

cos0° or cos2π

1

tan0° or tan2π

0

sin30° or sinπ/6

½

cos30° or cosπ/6

√3 / 2

tan30° or tanπ/6

1 / √3

sin45° or sinπ/4

√2 / 2

cos45° or cosπ/4

√2 / 2

tan45° or tanπ/4

1

sin60° or sinπ/3

√3 / 2

cos60° or cosπ/3

½

tan60° or tanπ/3

√3

sin90° or sinπ/2

1

cos90° or cosπ/2

0

tan90° or tanπ/2

undefined

sin120° or sin2π/3

√3 / 2

cos120° or cos2π/3

-½

tan120° or tan2π/3

-√3

sin135° or sin3π/4

√2 / 2

cos135° or cos3π/4

-√2 / 2

tan135° or tan3π/4

-1

sin150° or sin5π/6

½

cos150° or cos5π/6

-√3 / 2

tan150° or tan5π/6

-1 / √3

sin180° or sinπ

0

cos180° or cosπ

-1

tan180° or tanπ

0

sin210° or sin7π/6

-½

cos210° or cos7π/6

-√3 / 2

tan210° or tan7π/6

1 / √3

sin225° or sin5π/4

-√2 / 2

cos225° or cos5π/4

-√2 / 2

tan225° or tan5π/4

1

sin240° or sin4π/3

-√3 / 2

cos240° or cos4π/3

-½

tan240° or tan4π/3

√3

sin270° or sin3π/2

-1

cos270° or cos3π/2

0

tan270° or tan3π/2

undefined

sin300° or sin5π/3

-√3 / 2

cos300° or cos5π/3

½

tan300° or tan5π/3

-√3

sin315° or sin7π/4

-√2 / 2

cos315° or cos7π/4

√2 / 2

tan315° or tan7π/4

-1

sin330° or sin11π/6

-½

cos330° or cos11π/6

√3 / 2

tan330° or tan11π/6

-1 / √3