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1. F :. ++++ = 20. ++ = 5. 228 . 336 . 448 . 528

2. F + + = 15. 902 . 728 . 734 . 904

3. ABCD 3,4,5,6 AB, BC, CD, DA. :

. 270 . 220 . 282 . 342

4. ,, =24, :. 30 . 60 . 90 . 120

5. 9 . : , . I 4

2 ?

. 1260 . 1280 . 840 . 1920

6. 4 , 5 6 . I ?

. 209 . 210 . 120 . 119

7. 12 A B. I 4 12

?

. 45 . 126 . 84 . 168

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8. (>5). .H .

A: C3 *(4)C1

9. . . F .

A: 126

126

10. . .

, ?

A: (+2)! / (1)!(1)!

11. :

. (7!)2. (6!)2. 6!7! . (7!)2

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1. K (++) >, + = 15. .

16C1

. (++) = 5 7C2

H =16

C1*7C2 = 336

2. : 42+ 2. K = 15 . , . 4*225 + 2 = 902

3. 3C1*4C1*5C1+ 3C1*4C1*6C1+ 4C1*5C1*6C1+ 3C1*5C1*6C1 = 3424. = 24 = 2331

C ,

++ = 3, ++ = 1

=3+31

C31*1+31

C31 = 10*3 = 30

5. 9!/4!2!3! = 12606. 5 0,1,2,3,4

, 6 7 . H 210

. 0 . 2101

= 209 .

7. 1, 2, 3, 4 . 1 2 3 4

, , , , A & 1, 1& 2, . 4& B.

, + + + + = 8

, , . = 9C4 = 126

8. A . :

. H .

H

. H C3.

. H ,

= .

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. H = *

(4)C1

. H = C3 * (4)C1

9. = 12. . 6

= 12*12*12*12*12*12 = 126

6 = 126

, 6 = 126 126

10. . .CA ,

.

11. . I A 6!7!