3458
14.08.2021 07:24

3
iyar got a job as/like a chef in a
urant in Karagandy.
n't make airan because / such we
't got any yoghurt.
such / so hungry that I ate six
aks! -
ausage looks like / as shuzhuk, but it
different.
Since I've never tried it, I don't know if
hek is sweet or sour.
is so / such a delicious drink that I'd
mend it to anyone!
Read the text again. Choose the correct
answers.
1 In 2050, there will be - billion more
people living on Earth.
a ten b three c seven
2 Agriculture has destroyed a lot of
a prairies, forests and steppes
b grasslands in South America
c forests in Central Asia
3 Most vertical farms will be in
a buildings in towns and cities
b forests around the world
c underground laboratories
4 Some of the advantages of genetically
modified plants are that they
a have bigger seeds and can grow faster.
b don't need much fertiliser or pesticides
c can grow on land and in water.
5 Some scientists think that genetically
modified food might
a cost less than food produced on a farm
b taste better than the food we eat now
c be dangerous for people's health
description of a traditional Kazakh
ude information about:
me and origin of the dish
gredients that you need and how to
e it
looks and tastes like.
of Kazakhstan, a group
event was organised
' serving: it was so
h with meat and pasta​

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Ответ:
Крутойбрат
11.06.2020 00:58
Сначала формулы . затем формулы двойного угла sin2α=2sinαcosα cos2α=cos²α-sin²α=cos²α-(1-cos²α)=2cos²α-1⇒  2cos²α=1+cos2α cos2α=cos²α-sin²α=1-sin²α-sin²α=1-2sin²α⇒  2sin²α=1-cos2α а) сos75°cos105°=cos(90°-15°)·cos(90°+15°)== sin15°(-sin15°)=-sin²15°=-(1-cos30°)/2=(cos30°-1)/2= ((√3/2)-1)/2=0,25√3-0,5б) sin75°sin15°=°sin(90°-15°)sin15°=cos15° sin15°=sin30°/2=1/4=0,25в) sin105°cos15°=sin(180°-75°)cos15°=sin75°cos15°=sin(90°-15°)cos15°=cos15°cos15°=(1+cos30°)/2=(1+(√3/2))/2=0,5 +0,25√3 2 способ формулы cosα·cosβ=0,5cos(α-β)+0,5cos(α+β) sinα·sinβ=0,5cos(α-β)-0,5cos(α+β) sinα·cosβ=0,5sin(α+β)+0,5sin(α-β) а) сos75°cos105°=0,5cos(75°-105°)+0,5cos(75°+105°)=0,5cos(-30°)+0,5 cos180°==0,5· √3/2+0,5·(-1)=0,25√3-0,5б) sin75°sin15°=0,5cos(75°-15°)-0,5cos(75°+15° )=0,5cos60°-0,5 cos90°=0,5·0,5=0,25в) sin105°cos15°=0,5sin(105°+15°)+0,5sin(105°-15°)= =0,5sin120°+0,5sin90°==0,5 sin(180°-60°)+0,5·1=0,5 sin 60°+0,5=0,25√3+0,5
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Ответ:
18larina18
29.04.2020 11:24
У многих людей есть дача, это место,где можно отдохнуть,уединиться с природой и побыть одному или в компании. Я не исключение.У моей семьи большая,красивая дача.(описание)...
Мы любим отдыхать на ней,жарить шашлыки,весело проводить время.Я очень люблю такие дни.Мне нравится наша дача!

Many people have a cottage, a place where you can relax, be alone with nature and be alone or in company. I do not isklyuchenie.U my family big, beautiful cottage. (Описание) ...We love to relax on it, broil kebabs, fun vremya.Ya really love such dni.Mne like our cottage!
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