Помогите, пожалуйста, решить тригонометрические уравнения:)

1. 6√3cos(2x+3П/4)+9=0
2. 3-3cosx=2sin²x
3. 2cos²x/3+3sinx/3=0
4. 2sin²2x-1=0
5. sinx-√3cosx=0

Впиши can, cant, could, couldnt

.2....... I use your computer, please?

3.Diane ............ go to the cinema with her friends yesterday.She had too much homework.

4.He ................ read from a very young age.

5.Alexa ........... drive now that she is eighteen

6.Im afraid you.......... use the printer right now.Its broken.

7...............Emma speak Italian when she was twelve.

8.My mum .......... cook very well.Everything she makes is delicious!

9................. i leave early today, Miss Julie?

10.The weather was terrible yesterday, so we............. go to the beach.