$P=3^{2016}+3^{2017}+3^{2018}$
$=3^{2016}.(1+3+3^2)$
$=3^{2016}.13$
$⇒3^{2016} \vdots 13$
Hay $3^{2016}+3^{2017}+3^{2018} \vdots 13$
`P = 3^2016 + 3^2017 + 3^2018`
`P = 3^2016(1 + 3 + 3^2) `
`P = 3^2016 . 13 \vdots 13`
`⇒ P \vdots 13`
có một bài thoi nên mong mn giúp đỡ hứa vote và cảm ơn và ctlhn
I Put the verbs into the correct form
Xác định hàm số `y = -2x + b` biết rằng đồ thị của nó đi qua điểm `M(3; -5).`
Ai help em với em đang cần gấp ạ,,!
1. During a curfew it is not possible walking on the streets after a specified hour. A. during B. walking C. on D. specified 2. Clay that has been heated or fired in a kiln cannot to be softened again. A. that B. has been C. to be D. softened 3. They were seen climb through the window. A. were B. seen C. climb D. through 4. My parents always encouraged work hard at school. A. encouraged B. work C. hard D. at 5. I’m delighted hearing that you have made much progress in your study. A. I’m delighted B. hearing C. have made D. in 6. Whatever happened, I didn’t want to lose friendship of Vera. A. happened B. didn’t C. to lose D. of 7. It was a period of her life when she made some lifelong friendship. A. a period B. made C. lifelong D. friendship 8. Simon finds it hard for making friends with other children. A. finds B. it hard C. for making D. with 9. I'm sure he is capable in running a mile in for minutes. A. is B. in C. running D. for 10. Most people are afraid hearing the truth about them. A. are B. afraid C. hearing D. about
Phân tích nhân vật Tiêu Phong (Kiều Phong) trong tác phẩm Thiên long bát bộ của nhà văn kim dung để làm rõ tinh thần hiệp nghĩa của Tiêu đại hiệp đối với đại Tống và đạo trung quân với hoàng đế đại Liêu. (Văn học Trung Quốc - 中国文学 - Zhōngguó wénxué)
1. He worked out the answer. It was clever of him. It was 2. Marie always pays her bills regularly. She's careful that way. Marie is always 3. He was crossing the road. I caught sight of him. I noticed 4. When we finally heard that David had arrived, we were very relieved. We were relieved 5. Why have you thrown up your job? You're mad. You are 6. Jimmy got into his car and drove away. I saw this. I saw 7. It is disappointing that we haven't heard from Molly. We are 8. Contacting her at work is usually quite easy. She is 9. The house shook violently and all of us felt that. All of us felt 10. Can you sign the papers please? They are ready now. The papers are 11. Don't lend Tom any money. That would be most unwise. You 12. Mr. Pinchley doesn’t allow his teenage children to go out in the evenings. Mr. Pinchley makes 13. What I want to do is start my own business. I’m keen. I am 14. Harry couldn’t get his parents’ permission to buy a motorbike. Harry’s parents didn’t let 15. We can’t possibly work in this noise. It’s ………………………………………………………………………………………………………………………………..
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