1) Решите уравнение: cos 2x=корень из3/2.
2) Решите
уравнение: 4 sin x*cos x-корень из3 =0
3) Решите
неравенство: 2sin x> корня из 3
4) Решите
неравенство: 5 sin x- 2 sin^2x>=0

1. Choose the correct answer:
She ______ always lie!
а) tells б) is telling в) doesn`t tell г) tell д) none of them
2. Choose the correct answer:
He used ____ tennis.
а) playing б) play в) to play г) is playing д) none of them
3.  Choose the correct answer:
I wish I _____ a child again.
а) am б) was в) were г) is д) none of them
4. Rut the right preposition:
 The house is on fire! We have to put it ______
а) out б) away в) down г) off д) none of them
5.Find the mistake in plural noun from
а) phenomena б) diplomas в) gladioli г) curricula д) none of them.
6. Where isn`t the article necessary?
а) He dream to mountaineer the Everest б) One of the most famous and popular sight in the USA is the Golden Gate Bridge в) I wish to visit the Argentine г) I`d like to д) none of them.
7. Choose the correct translation " I`s like to spend New Year holidays in ___ Alps" :
а) Шахматист пересел; б) Был сделан ход; в) Шахматист сделал ход; г) Нет правильного ответа; д) Шаматист переехал.
8.Choose the correct answer " I`d like to spend New Year holidays in ____ Alps" :
а) the б) an в) a г) some д) none of them
9. Fill in the missing modal verb.
_____ I come in? 
а) Coild б) Should в) none of them г) may д) ought to 
10. Choose the apporopriate idiom
Let`s go to the disco. You need to ____
а) To have green fingers б) To blue with envy в) To be born with a silver spoon г) To paint the town red д) None of them
11. Choose the best answer.
He used to play piano, when he was 10.
а) В 10 лет он начал играть на пианино б) Когда ему было 10 он играл на пианино в) Он играл на пианино 10 лет г) Он играет на пианино на протяжении 10 лет д) Он уже 10 лет не играл на пианино
12. Find the correct answer.
а) He always speak to me like I were his friend б) He always spoke to me like I am his friend в) He always speack to me like I were his friend г) He always spoke to me like I were his friend д) None of them.