На рисунке изображен график функции y=f(x). Прямая, проходящая через точку (−1;  1), касается этого графика в точке с абсциссой 3. Найдите f′(3).

6sin^2x-11cosx-10=0

sin^2x+5sinxcosx+6cos^2x=0

4tgx-12ctdx+13=0

5-8cos^x=sin2x

7sin2x+9cos2x=-7

ПОМОГИТЕ ПОЖАЛУЙСТА

Платонов "Возвращение" Характеристика одного из героя

1) Найди закономерности, по которым составлены ряды чисел, и продолжи каждый из них на 4 числа.

298, 287, 265, 232, 188, ...

1280, 640, 320, 160, 80, ...

2, 3, 5, 8, 13, 21, ...

2) Составь свои ряды, используя многозначные числа и другие закономерности.

Упр. 152. Вставьте глагол to be в Present, Past или Future Simple. 1. My father ... a teacher. 2. He ... a pupil twenty years ago. 3. I... a doctor when I grow up. 4. My sister ... not ... at home tomorrow. 5. She ... at school tomorrow. 6. ... you ... at home tomorrow? 7.... your father at work yesterday? 8. My sister ... ill last week. 9. She ... not ill now. 10. Yesterday we... at the theatre. 11. Where ... your mother now? She ... in the kitchen. 12. Where ... you yesterday? I ... at the cinema. 13. When I come home tomorrow, all my family ... at home. 14. ... your little sister in bed now? Yes, she ... 15. ... you... at school tomorrow? Yes I ... . 16. When my granny... young, she ... an actress. 17. My friend ... in Moscow now. 18. He ... in St. Petersburg tomorrow. 19. Where ... your books now? They ... in my bag.