Предмет: Алгебра, автор: maksut17

Упростите выражение. 1+ctg (п+а)tg (3п/2-а)

Ответы

Автор ответа: Forbic
0
1+ctga*ctga=1+ctg^2a=1/sin^2a
Автор ответа: Forbic
0
Это же формулв приведения они простые. Главное увидеть
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Look carefully at each line. Some lines are correct but some have a word which shouldn’t be there. Tick (V) each correct line. If a line has a word which shouldn’t be there, write the word in the space. Mind your spelling.

A case of mistaken identity:

1)said, ‘Please follow me.’ They went up in to a lift.
2)Then there was a long corridor with two or three
3)doors. Although it seemed strange so that the car hadn’t
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5)Her aunt, who she was very rich, owned several large
6)hotels, which she often stayed in them. Diana supposed that her aunt felt
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8)‘Please you wait here,’ said the driver, and
9)disappeared into a room at the end of the corridor.
10)There seemed to be a lot of people that in one of the
11)rooms. Then the driver, who he hadn’t been gone long,
12)came back at and asked Diana to follow him. They went
13)into a large room full of people, who all started clapping.
14)There was a poster that it said, ‘Diana Harris, Supermodel.’
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Example:
After a few minutes, the car stopped in front of - V
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