Тригонометричні функції

π/2=90⁰

π/3=45⁰

π/6=30⁰

3π/2=270⁰

y=sin x

y=cos x

y=tg x

y=ctg x

2π/5

π/5

π/10

2π

cos²x +sin²x=1

sin 2x =2sinx cosx

cos 2x= cos²x -sin²x

tg x=sinx/cosx

cos α > 0, sin α < 0

cos α < 0, sin α < 0

cos α > 0, sin α > 0

cos α < 0, sin α > 0

-0,6

-0,8

0,8

0,6

 ±3π/2+2πn, n∊Z

±2π/3+2πn, n∊Z

±π/3+2πn, n∊Z

 ±π/6+πn, n∊Z

±π/3 + 2πk, k∊Z

±π/6 + 2πk, k∊Z

 ±2π/3 + 2πk, k∊Z

 ±5π/6 + 2πk, k∊Z