Розв'язування тригонометричних рівнянь

π -arctg3+ πn,n∈Z; π/4+ πm,m∈Z

arctg3+ πn,n∈Z;

π -arcctg3+ πn,n∈Z; π/4+ πm,m∈Z

π -arcctg3+ 2πn,n∈Z; π/4+ 2πm,m∈Z

А Д В Г

Б В Г Д

В Д Б Г

Г А В Д

- arctg 2 +πn, n∈Z;

π ∕ 4 + πn, n∈Z;

π ∕ 4 + πn, n∈Z; - arctg 2 +πn, n∈Z;

-π ∕ 4 + πn, n∈Z; arctg 2 +πn, n∈Z;

π/2+2πn, n∈Z; (-1)^k+1π/6+πk, k∈Z

(-1)(k+1)π/6+πk, k∈Z

π/2+2πn, n∈Z

-π/2+2πn, n∈Z ; (-1)^Kπ/6+πk, k∈Z

-π/12+π/2n, n∈Z

5π/12+π/2n, n∈Z

-7π/72+π/3n, n∈Z

π/12+π/2n, n∈Z

-2π/3+πn, n∈Z

arctg 2+πn, n∈Z

π/2+2πn, n∈Z

π/3+πn, n∈Z

(-1)^kπ/18-π/18+πk/3, k∈Z

(-1)^kπ/18-π/36+πk/4, k∈Z

(-1)^kπ/36+πk/3, k∈Z

(-1)^kπ/9-π/12+πk/3, k∈Z

2t - 5t + 2 = 0

2t² - 5t + 2 = 0

2t² + 5t + 2 = 0

2t² - 5t - 2 = 0

 sin x =2/3

cos x =2/3

sin x =3/2

tg x = 3/2

4πk, k∊Z

2πk, k∊Z

πk, k∊Z

 π + 2πk, k∊Z

-π/12 + πk, k∊Z

5π/12 + πk, k∊Z

7π/12 + πk, k∊Z

 π/12 + πk, k∊Z