Unilibrary. Oliy ta'lim muassasalarining yagona elektron kutubxona axborot tizimi.

Shortlisted Problems with Solutions

These solutions are not as easy as they may seem at the first sight. There are two different optimal configurations in which the variables have different values, and not all of sums of three consecutive numbers equal 1. Although it is easy to find the value 25/2, the estimates must be done with care to preserve equality in the optimal configurations.

Проектирование станочных приспособлений

В книге приведены сведения, необходимые при проектировании различных видов станочных приспособлений, применяемых в массовом и серийном типах производства, классификация и их назначение.

ELEKTR INJINIRING

Insoniyat elektr va magnit hodisalarining oddiy koʻzatuvchisi bulishdan to uning sun'iy energiya manbalarini yaratgunicha oradan ko'p davr o'tdi. Birinchi elektr mashina 1650 yilda, kuchlanishning birinchi elektroximiyaviy manbasi esa 1799 yilda yaratildi. XIX asrning birinchi yarimlariga kelib nazariy va amaliy elektrotexnika birmuncha rivojlana boshladi. Ana shu davrlarda tokning issiqlik ta'siri, elektr va magnit maydonlari orasidagi bog'lanish, elektrodinamik hodisalar kashf etildi. XIX asrning 50-60 yillarida esa o'zgarmas tok dvigatellarini yasash ustida izlanishlar qizib ketdi.

СИРОЖ УЛ-МУСЛИМИН

Чу йўндум хомаи мушкин шамома, Қилай деб Ҳақ оти бирла зебнома. Таололлаҳ зиҳи, халлоқи Маъбуд Ки, махлуқот андин бўлди мавжуд. Йўқ эрди ҳар не бор ул қилди изҳор, Борин йўқ айлабон ҳам бўлғуси бор. Қилиб барҳақ улусқа анбиёси, Муҳаммад барчасининг пешвоси. Мунга юз минг салом андин дамодам, Яна авлодию асҳобига ҳам.

The IMO Compendium

The International Mathematical Olympiad (IMO) is nearing its fiftieth anniversary and has already created a very rich legacy and firmly established itself as the most prestigious mathematical competition in which a high-school student could aspire to participate. Apart from the opportunity to tackle interesting and very challenging mathematical problems, the IMO represents a great opportunity for high-school students to see how they measure up against students from the rest of the world. Perhaps even more importantly, it is an opportunity to make friends and socialize with students who have similar interests, possibly even to become acquainted with their future colleagues on this first leg of their journey into the world of professional and scientific mathematics. Above all, however pleasing or disappointing the final score may be, preparing for an IMO and participating in one is an adventure that will undoubtedly linger in one’s memory for the rest of one’s life. It is to the high-school-aged aspiring mathematician and IMO participant that we devote this entire book.

Ўзбек тилининг турли сатҳларида умумийлик- хусусийлик диалектикасининг намоён бўлиши

Фалсафадаги умумий хусусийлик, моҳият-ходиса диалектик категорияларини ёритиш учун тилла инвариант-вариант атамалари қўлланилади.

Kasb mahorati

Kasb mahorati» darsligi «Ovqat tayyorlash texnologiyasi» yo'nalishi bo'yicha о ‘qiyotgan va shu sohani о ‘rganayotganlar uchun Davlat standartlari talablari va ushbu kasbga doir namunali о ‘quv dasturi hujjatlariga muvoflq yozilgan. Darslikda «Umumiy ovqatlanish mahsulotlari texnologiyasi» yo'nalishi bo'yicha kerakli ma lumotlar keltiriigan bo ‘lib, о ‘quvchilaming kasb mahoratiga bo ‘Igan qiziqishlarini to ‘la qondiradi va undan ishlab chiqarish sohasi xodimlari ham foydalanishi mumkin.

САДДИ ИСКАНДАРИЙ

«Хамса»ни мукаммал битказиш ҳақидаким, охир-оқибат (тўрт достонни тугатгунча чарчаб) ялқовланган табъни ғафлат уйқусига мойил қилмай, сўнгисини ҳам ёзишга азму қарор қилингани.

INTERNATIONAL MATHEMATICAL OLYMPIADS, 1978-1985 AND FORTY SUPPLEMENTARY PROBLEMS

The Mathematical Association of America is pleased to publish this sequel to NML vol. 27; it contains the International Mathematical Olympiads, 1978-1985, and forty supplementary problems selected by Murray S. Klamkin, who prepared this text. The educational impact of such problems in stimulating mathematical thinking of young students and its long range effects have been eloquently described, both from the viewpoint of the participant and that of the mature mathematician in retrospect, by Gábor Szegö in his preface to the Hungarian Problem Books, volumes 11 and 12 of this NML series. Our aim in all problem collections of this series is not only to help the high school student satisfy his curiosity by presenting solutions with tools familiar to him, but also to instruct him in the use of more sophisticated methods and different modes of attack by including explanatory material and alternate solutions. For problem solvers, each problem is a challenging entity to be conquered; for theory spinners, each problem is the proof of their pudding. It is the fruitful synthesis of these seemingly antithetical forces that we have tried to achieve.

КОРХОНАНИНГ ФУНДАМЕНТАЛ ҚИЙМАТИНИ БОШҚАРИШ НАЗАРИЯ ВА АМАЛИЁТ

Ушбу монографияда корхоналар қийматини бош қаришнинг назарий ва илмий услубий жиҳатлари кенг ёритилган, шунингдек, қийматни баҳолаш моделлари ва таҳлил қилиш кўрсаткичлари таснифланган, корхона фундаментал қийматини бошқариш методологиясини такомиллаштириш ва самарали бошқариш ҳам да оширишга қаратилган илмий таклиф ва амалий тавсиялар ишлаб чиқилган.

The Philosophy of Mathematics Education Today

Each volume in the series presents state-of-the art research on a particular topic in mathematics education and reflects the international debate as broadly as possible, while also incorporating insights into lesser-known areas of the discussion. Each volume is based on the discussions and presentations during the ICME-13 Congress and includes the best papers from one of the ICME-13 Topical Study Groups or Discussion Groups.

TOPICS IN ALGEBRA

I approached rev1smg Topics in Algebra with a certain amount of trepidation. On the whole, I was satisfied with the first edition and did not want to tamper with it. However, there were certain changes I felt should be made, changes which would not affect the general style or content, but which would make the book a little more complete. I hope that I have achieved this objective in the present version. For the most part, the major changes take place in the chapter on group theory. When the first edition was written it was fairly uncommon for a student learning abstract algebra to have had any previous exposure to linear algebra. Nowadays quite the opposite is true; many students, perhaps even a majority, have learned something about 2 x 2 matrices at this stage. Thus I felt free here to draw on 2 x 2 matrices for examples and problems. These parts, which depend on some knowledge of linear algebra, are indicated with a #. In the chapter on groups I have largely expanded one section, that on Sylow's theorem, and added two others, one on direct products and one on the structure of finite abelian groups.

САБЪАИ САЙЁР

Бу етти жаннатосо гулшан ва етти осмонсифат қаср наққошлигининг сабаби ва меъморлигининг кайфияти ва иморатининг тархини - лойиҳасини ўзгартиришлар билан гўзаллаштирмоқ ва биносининг нуқсонларини тузатишлар билан дилкашроқ қилмоқ ва адабсизликлар учун узр айтмоқ ва ўзбошимчаликлар учун маъзират сўрамоқ.

Mathematical Analysis I

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АКТИВНАЯ САМОРЕГУЛЯЦИЯ ЭМОЦИОНАЛЬНЫХ СОСТОЯНИЙ СПОРТСМЕНА

В настоящей брошюре излагается система приемов, рекомендуемых для применения в спортивной практике с целью активной саморегуляции эмоциональных состояний и восстановления работоспособности при физическом и нервном утомлении. Предлагаемый комплекс психологических приемов представляет собой переработанную применительно к спортивной практике методику так называемой «аутогенной тренировки». В брошюре кратко излагаются научные основы саморегуляции, даются практические указания к овладению определенными приемами и их применению в условиях спортивных соревнований и подготовки к ним. В тексте приводятся словесные формулировки психологических приемов и описание специальных упражнений для выработки навыков саморегуляции и мышечного расслабления.

Robinson Crusoe

I was born in the year 1632 in York, a large city in northern England. I received a good upbringing from my parents. My father was originally from Germany and had made his money in buying and selling before settling down in York and marrying my mother, whose surname was Robinson.