Reading Task 1 Read carefully and answer the questions: Peter and his friend are going to play. Peter take his lucky soccer ball with him and he wins with it. Peter like to play soccer. And his friend love to play baseball. Friend says that winning is important. Peter tell that it is not. The most important is to try the best. Last time he played with his team he can't kick the ball. And other team member laugh at him and tels looser. But I tell that I do my best and its ok that I can't kick the goal. His trainer supports Peter. Always be nice to the other team means you are a good sportsman. 1. Give the title to the text A) Sport B) Soccer C) Good sportsman D) Baseball 2. What is the favourite sport of Peter? A) Football B) Jogging C) Soccer D) Karate 3. What is the favourite sport of Peter's friend? A) Soccer B) Gymnastics C) Running D) Baseball 4. Winning is fun, but its ok to lose as long as you A) Try your good B) Try your best C) Give up D) Have fun 5. Peter lost the last soccer game because he... A) Broke his leg B) Played badly C) Didn't kick the goal D) lost the ball 6. What did the boy from the other team do just after the game? A) Laughed at Peter B) Invited to the party C) Said that his team was better than Peter's team D) Apologized 7. What does his trainer do? A) Support B) Shout C) Scream D) Nothing 8. What does being a good sport mean? A) Say sorry when you are wrong B) Always be nice to the other team C) Be a good soccer palyer D) Be proud of yourself Writing Task 2. Answer the following questions. 1. What is your favourite sport? 2. How often do you play? 3. What is the most popular sport in your country? Do you like it? 4. Do you think sports are important? Why? 5. Write names of your favourite sportsmen?
В итоге, мы получили произведение трёх подряд идущих чисел, среди которых обязательно найдётся хотя бы одно чётное число и число делящееся на три. Следовательно, произведение трёх подряд идущих чисел будет кратно 6. Т.к. итоговое произведение получено из исходного многочлена путём равносильных преобразований, то делаем вывод: многочлен а³+3а²+2а кратен числу 6.
a³+3a²+2a=a(a²+3a+2)=a(a+1)(a+2)
a²+3a+2=(a+1)(a+2)
D=3²-4*1*2=9-8=1
a₁=(-3+1)/2=-2/2=-1
a₂=(-3-1)/2=-4/2=-2
В итоге, мы получили произведение трёх подряд идущих чисел, среди которых обязательно найдётся хотя бы одно чётное число и число делящееся на три. Следовательно, произведение трёх подряд идущих чисел будет кратно 6. Т.к. итоговое произведение получено из исходного многочлена путём равносильных преобразований, то делаем вывод:
многочлен а³+3а²+2а кратен числу 6.