Оч срочно нужно...ребяяят помогите а .... ^_<

1)   Упростить 2 Sin (60 - a) + Sin a 

2)   Найти log 0,0001 + lg 100

3)   Найтси Х, logx = 1/2 log a - 2/5 log b

4)   Выполнить действе 2-5i / 3+2 i 

5)   Упростить (∛b)² /  (∛b)⁹ (∛b-2)² =

основные формы земельной собственности в России в 15-16 вв

2. In your cuiture. / Vocabulary. Read about one of the Russian charity funds. Choose the appropriate word to fill in each gap in the text. 

The Children Oncology and Hematology Research Institute (0) set up a charitable fund "Nastenka". The fund started its work in February of 2002. The charity (1).... sick children and their families. It also (2)...... people from different countries to make their (3)...... to charity events and (4)... money for the fund. The charity doesn't only (5)..... money. Its members (6)..... to charity in many different ways. They (7)..... the needy children with medical care, organise parties, entertainment shows, concerts and excursions for sick children. 

0 a open              b put                         c set up 

1 a raises            b supports              c donates 

2 a asks               b gathers                c makes

3 a difference      b fundraising          c contribution 

4 a donate            b carry                     c use 

5 a have                b spend                  c raises 

6 a contribute       b take part              c support  

7 a give                  b provide                c take 

как изображалась афродита