Предмет: Алгебра, автор: V1TAL1K

Помогите пожалуйста (с подробным решением).

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Автор ответа: Gerren
0
∫(f(x)+g(x))dx=∫f(x)dx+∫g(x)dx  ∫k*f(x)dx=k∫f(x)dx  ∫x^ndx=x^(n+1)/(n+1)+C   ∫e^xdx=e^x+C  ∫cosxdx=sinx+C ∫sinxdx=-cosx+C
1) ∫(5sinx+2x^4+e^x)dx=5∫sindx+2√x^4dx+∫e^xdx=-5cosx+2x^5/5+e^x+C
2)∫(3e^x-sinx+x^2)dx=3∫e^xdx-∫sinxdx+∫x^2dx=3e^x+cosx+x^3/3+C
3)∫(6x^2+2cosx-x^5)=6∫x^2dx+2∫cosxdx-∫x^5dx=2x^2+2sinx-x^6/6+C
4)∫(2x^3+4cosx+x^8)=2∫x^3dx+4∫cosxdx+∫x^8dx=x^4/2+4sinx+x^9/9+C
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Предмет: Английский язык, автор: geinevica56
xercise 1. You will hear Donna Lowdon talking about her childhood. For questions 1-6,
complete the sentences.
Donna has 1)____________ siblings. On a school day, Donna had to get up at 2)__________ .
There weren’t many 3)___________ between the children in Donna’s family. The children
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5)_________ and 6)_________.
Exercise 2. Fill in the gaps with the correct present form of the verbs in brackets
1. I ___________ (go) jogging every morning.
2. I ___________(not call) Ann for ages. I wonder how she is.
3. My brother always __________ (wear) my clothes.
4. Our flight ____________ (reach) London at 7:30 p.m.
5. What ______________(do)? Your face is all red and you look really upset.
6. Why _________ (Sue/ be ) so sad today?
7. How often __________ ( you /have) English lessons?
8. The cake _______ (taste) great. Can I have another piece?
9. The children are dirty. They _____________ (play) football since morning.
10. We can’t buy the tickets. We ________ (already / spend) all our money.
Exercise 3. Fill in the gaps with the correct past form of the verbs in brackets
1. John _______ (come) across a photo of his great-grandfather as he _________(look)
through some old things.
2. While Emma _________(do) her homework, her brother ________( play) music loudly, and
she couldn’t concentrate.
3. Ann ________(try) to find a present for her mum for over an hour before she
_____________( finally/ see) something nice to buy her.
4. Tracy _________(be) exhausted because she ______(jog) for two hours.
5. Tonia _________( perform) really well yesterday, she _________( practice) for months
before the recital.
Exercise 4.Fill in: across, into, over, up with, down with. (phrasal verb)
1. Dan came _____ some great ideas for his grandparents anniversary celebration.
2. My body aches and I feel hot. I think I`m coming _____ the flu.
3. She came ______ a lot of money when her uncle died.
4. Why don`t you come _____ to our place when you finish work?
5. They come _____ at least once a week for a visit.
Exercise 5. Complete the sentences with the prepositions.
1. He has great respect ______ his grandparents.
2. Aren`t you ashamed _____ treating her that way.
3. She is very attached _____ him.
4. What are you arguing _____ this time you two?
5. I`ve always felt very close _____ my old sister
Предмет: Геометрия, автор: ELOKIK