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ПРОЕКТ по математике PowerPoint PPT Presentation


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ПРОЕКТ по математике. Выполнили : Кибарина Мария, Демичева Анна ученицы 9 мн класса МОУ «Лицей г.Отрадное» Руководитель : Лупашко Людмила Валентиновна. Математические софизмы. Что же такое софизмы?. Содержание. 5 = 6. 2 * 2 = 5. Хорда, не проходящая…. Из точки на прямую….

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ПРОЕКТ по математике

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1751960

:

,

9 .

:


1751960

?

5 = 6

2 * 2 = 5

,

4 . = 40000 .


1751960

?

, .

, . , . . , .


1751960

5=6

, 5=6.

:

35+10-45=42+12-54

.

5(7+2-9)=6(7+2-9)

.

5=6.

?


2 2 5

2*2=5

: 4:4=5:5.

.

: 4(1:1)=5(1:1).

.

4=5, 2*2=5.

?


1751960

. - , , D . , . D D. : D=DC ( ), = ( , ). , D=DC ( ). , .

, D= DC, .

, =.

D

, , .

?


1751960

, , , . . , , . D. D . , , , DC . , D. .

D

E

.

?


1751960

- b - . b a c.

b - a = c, b = a + c.

, : b2 - ab = ca + c2.

bc. :

b2- ab - bc = ca + c2 - bc,

b(b - a - c) = - c(b - a - c),

b = - c, c = b - a,

b = a - b, a = 2b.

?


1751960

90, - , = , , - , , L . : L = , L = , = L = = ,

= ( - , = , - ), = , = = L, = + , = L + L, = L, = L, = .

?


4 40000

4 . = 40000.

:2 .=200. . : 4 .=40000.

?


1751960

.

, , = + . - : 2-=+-2-,

2--=-2-,

( -)=( -).

( - ), , =.

?


1751960

:

35+10-45=42+12-54.

: 0=0.

.

: 5(7+2-9)=6(7+2-9)

, : 7+2-9=0

0, 0 ! .


1751960

: 4:4=5:5.

:

, .


1751960

:

, .

, D.


1751960

. , .. D.

, , D 180 . ( =90, D=90).


1751960

b(b-a-c )= -c(b-a-c) (b-a-c), , b-a-c=0., .


1751960

, , . , D , .


1751960

. , .


1751960

, ( - ), .


1751960

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