АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ

ocean77 · Jun 28, 2006, 07:29

АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ
there you have the Linke brothers:
http://ihtik.lib.ru/math_1june2006/

**Hans Andersen** · Jun 28, 2006, 07:34

that's many books

ocean77 · Jun 28, 2006, 09:35

So Thanxxxxxxxxxx men

& Nice to meet U

can U help!?
I need this Book:
Techniques in fractal Geometry "Kenneth Falconer", 1997

**Hans Andersen** · Jun 28, 2006, 10:15

thanks? for what? i just quoted Slayers_`Boxer`

and nice to meet you too

Meme · Nov 16, 2006, 23:36

Dorogie forumchane, ya konechno znayu chto vy zdes' seryoznym delom zanimaytes', no vsyo zhe nuzhna vasha pomosh'

Vot u menya takaya trivial'naya problema, no ne mogu re****', vernee reshayu no otvet poluchennyj mnoyu ne sootvetstvuet.

Vochinch che, vor angghierena

Tak vot.

a)Find the equation of the straight line passing through the points with coordinates (-1;5) and(4;-2) giving ur answer in the form ax+by+c=0, where a, b, c are integers.
The line crosses the x axis at the point A and the y axis at the point B, and O is the origin
b)Find the area of triangle(simbol

) OAB

Mers u in advance

Meme · Nov 16, 2006, 23:45

I'll write here how I have worked out the problem, so far for u not to think I am lazy

First of all I've found the equation of the line, which is 7x+5y-18=0
Afta, the coordinates of A (18/7;0) B(0;18/5) and O (0;0)(karogha stegh mi ban en chem arel, bayc it says O, is the origin). I have also found all the sides of the triangle OA=0 AB=-1 BO=18/5 no ploshad' kak vidite, ne poluchaetsya, a ona est' ):
A=1/2hxbase

Lareg · Nov 17, 2006, 00:41

длина АВ не может быть отрицательной. ОА не равно нулю. ОА = 18/7.
площадь прямоугольного треугольника = 1/2 * (ОА)*(ОВ)

Meme · Nov 17, 2006, 10:42

Da teoreticheski eto ne vozmozhno.
Lara a kak vy poluchili dlina OA=18/7?

Lareg · Nov 17, 2006, 11:07

можно по формуле: расстояние между двумя точками с заданными координатами равно корню квадратному из суммы квадратов разницы координат.
но в этом случае это очевидно - ведь т.О - начало координат.
вы, чтоб не путаться, постройте эту прямую и все станет ясно.

Meme · Dec 25, 2006, 17:51

zhzhet

Meme · Feb 7, 2007, 22:04

Nastoyashaya golovolomka, ili zhe noch'yu u menya tormozhenie mozga (esli takova imeecca vashe

)

Two cars A and B are moving on straight horizontal roads with constant velocities. The velocity of A is 15m/s due east and the velocity of B is 20 (i-j)m/s, where i and j are unit vectors directed due east and due north respectively. When t=0 A is at the origin O and the position vector of B relative to O is 200j m. At time t seconds, the position vectors of A and B are r and s.

(a) Find the time when B is due east of A.
(d) Find the time when the cars are again 200m apart.

HELP!

Meme · Feb 8, 2007, 20:23

Lareeeeg, a Lareg, nu gde zhe ty a?

Jun 28, 2006, 07:29	#1
ocean77 Младенец Join Date: Jun 2006 Location: spain Posts: 5 Rep Power: 0 Reputation: 10	АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ there you have the Linke brothers: http://ihtik.lib.ru/math_1june2006/

Jun 28, 2006, 07:34	#2
Hans Andersen the mochinger Join Date: Feb 2002 Location: Paranoid Android, @10:50 Posts: 1,737 Rep Power: 7 Reputation: 90	Re: АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ that's many books __________________ The flower that blooms in adversity is the most rare and beautiful of all.

Jun 28, 2006, 09:35	#3
ocean77 Младенец Join Date: Jun 2006 Location: spain Posts: 5 Rep Power: 0 Reputation: 10	Re: АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ So Thanxxxxxxxxxx men & Nice to meet U can U help!? I need this Book: Techniques in fractal Geometry "Kenneth Falconer", 1997

Jun 28, 2006, 10:15	#4
Hans Andersen the mochinger Join Date: Feb 2002 Location: Paranoid Android, @10:50 Posts: 1,737 Rep Power: 7 Reputation: 90	Re: АЛГЕБРА. МАТ.АНАЛИЗ. ГЕОМЕТРИЯ thanks? for what? i just quoted Slayers_`Boxer` and nice to meet you too __________________ The flower that blooms in adversity is the most rare and beautiful of all.

Nov 16, 2006, 23:36	#5
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	Dorogie forumchane, ya konechno znayu chto vy zdes' seryoznym delom zanimaytes', no vsyo zhe nuzhna vasha pomosh' Vot u menya takaya trivial'naya problema, no ne mogu re***', vernee reshayu no otvet poluchennyj mnoyu ne sootvetstvuet. Vochinch che, vor angghierena Tak vot. a)Find the equation of the straight line passing through the points with coordinates (-1;5) and(4;-2) giving ur answer in the form ax+by+c=0, where a, b, c are integers. The line crosses the x axis at the point A and the y axis at the point B, and O is the origin b)Find the area of triangle(simbol ) OAB Mers u in advance __________________ Regardz Megardz Last edited by Meme : Nov 17, 2006 at 08:31.*

Nov 16, 2006, 23:45	#6
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	I'll write here how I have worked out the problem, so far for u not to think I am lazy First of all I've found the equation of the line, which is 7x+5y-18=0 Afta, the coordinates of A (18/7;0) B(0;18/5) and O (0;0)(karogha stegh mi ban en chem arel, bayc it says O, is the origin). I have also found all the sides of the triangle OA=0 AB=-1 BO=18/5 no ploshad' kak vidite, ne poluchaetsya, a ona est' ): A=1/2hxbase __________________ Regardz Megardz Last edited by Meme : Nov 17, 2006 at 08:17.

Nov 17, 2006, 00:41	#7
Lareg Лараян Арег Join Date: Jul 2006 Location: на семи холмах Posts: 4,042 Rep Power: 2 Reputation: 80	длина АВ не может быть отрицательной. ОА не равно нулю. ОА = 18/7. площадь прямоугольного треугольника = 1/2 * (ОА)*(ОВ) __________________ Как много искр божьих загасил ветер в голове... (с)

Nov 17, 2006, 10:42	#8
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	Da teoreticheski eto ne vozmozhno. Lara a kak vy poluchili dlina OA=18/7? __________________ Regardz Megardz

Nov 17, 2006, 11:07	#9
Lareg Лараян Арег Join Date: Jul 2006 Location: на семи холмах Posts: 4,042 Rep Power: 2 Reputation: 80	можно по формуле: расстояние между двумя точками с заданными координатами равно корню квадратному из суммы квадратов разницы координат. но в этом случае это очевидно - ведь т.О - начало координат. вы, чтоб не путаться, постройте эту прямую и все станет ясно. __________________ Как много искр божьих загасил ветер в голове... (с)

Dec 25, 2006, 17:51	#10
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	zhzhet Attached Images __________________ Regardz Megardz

Feb 7, 2007, 22:04	#11
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	Nastoyashaya golovolomka, ili zhe noch'yu u menya tormozhenie mozga (esli takova imeecca vashe ) Two cars A and B are moving on straight horizontal roads with constant velocities. The velocity of A is 15m/s due east and the velocity of B is 20 (i-j)m/s, where i and j are unit vectors directed due east and due north respectively. When t=0 A is at the origin O and the position vector of B relative to O is 200j m. At time t seconds, the position vectors of A and B are r and s. (a) Find the time when B is due east of A. (d) Find the time when the cars are again 200m apart. HELP! __________________ Regardz Megardz

Feb 8, 2007, 20:23	#12
Meme mellow Join Date: Nov 2006 Location: Earth Posts: 533 Rep Power: 2 Reputation: 61	Lareeeeg, a Lareg, nu gde zhe ty a? __________________ Regardz Megardz

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