Предмет: Математика, автор: snufY

Sin(2x-30)-sin(2x-60)
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Автор ответа: КемикалРоманс
0
Обыкновенная разность синусов

sin(2x-30)-sin(2x-60)=2sin((2x-30-2x+60)/2)cos((2x-30+2x-60)/2)=
=2sin(15)cos(2x-45)
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Summative Assessment
Term 4
Grade 8
Reading
Task 1 Read the text. Mark the sentences TRUE or FALSE according to the context.
My dream job
When I was younger, it was so easy to choose my future profession. At the age of 5 I wanted to be a shop-assistant in a candy store, at the age of 10 I was sure that I would become a doctor. Now I am little bit confused.
Well I passed few tests and realized that I can be good for few professions. First of all I would like to say, that perfect profession for me is not only good salary and career, but also my satisfaction. I mean I can wake up every morning happy and full of energy to do my job. Also I would like to have good colleagues and loyal head. So I am good for few jobs: economist, secretary, interpreter, logistic or programmer.
For now I really would like to be an interpreter. My English is really good. I can study one more language at the university and I will be able to speak 3 languages. Another good thing about this profession is possibility to travel. I am really exciting about it. Traveling can give us chance to explore the world and to open new horizons. This is what I am looking for.
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The most important thing still is to be happy with your job. Then you can solve any problems and get the best results in your team.
1. At the age of 5 I wanted to be a logistic or programmer. T/F
2. At the age of 10 I wanted to be a doctor. T/F
3. Now I am a little bit disoriented T/F
4. For me a good profession is only a good salary and career. T/F
5. I am good for few jobs: economist, secretary, a shop-assistant in a candy store, interpreter. T/F
6. I am really good to speak 3 languages. T/F
7. You can get great experience from new colleagues. T/F
8. When you work an interpreter you can work abroad with new technologies. T/F
9. The main thing is to be happy with your work. T/F

Total [9]

Writing
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