I usually get up at 7 AM. I clean my teeth, wash my face and my hands with cold water.
Then I go to my room and make my bed. I get dressed and brush my hair.
I have breakfast with my father. After breakfast I dress my school uniform.
Then I put my books and copy-books into my schoolbag and go to school.
At 8 a.m. I go to school and have lessons till 14 p.m.
At 2 p.m. I have dinner.
After dinner I go for a walk with my friends. Then I do my homework.
At 7 p.m. my family and I have supper together.
Then I read books, watch TV or play computer games.
At 9 p.m. I take a shower and go to bed. Usually I sleep well.
Пошаговое объяснение:
a) y'=28x^3-15x^4+18x^2+2x-8
y''=84x^2-60x^3+36x+2
б) y'=-5sinx +1/x, y''=-5cosx -1/x^2