☰ Reja · Matematika

Trigonometrik tenglama, tengsizlik va funksiyalar

19-hafta · blok 1.7, 1.12 · 3 dars
Avval o‘zingiz yeching, keyin javobni tekshiring.
1
cos x = 0 ni yeching.
2
sin x = -sqrt(2)/2 ni yeching.
3
2 cos^2 x + cos x - 1 = 0 ni yeching.
4
tg 3x = 1 ni yeching.
5
cos x > 0 tengsizlikni [0; 2π] kesmada yeching.