1) 2sin 2x=3cos 2x;2) 5sin x+ cos x=0;3)4sin x 3cos x=0;

Question

1) 2sin 2x=3cos 2x;
2) 5sin x+ cos x=0;
3)4sin x 3cos x=0;

Answer 1

Решение во вложении.

---

---

---