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1. 36 . ,
: = 4: 5.
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: = 4: 5 , = 4 , = 5 . = +. = 4 + 5 , = 9 . 36. 9 = 36; = 4.
= 4 4 = 16, = 5 4 = 20
: 16 20
2. , : = 5: 14. , : = 3: 4. :
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: = 5: 14 , = 5 , = 14 .
: = 3: 4 , = 3 , = 4 .
= + = 4 + 3 = 7 . 7 = 14 , = 2 , = 3 2 = 6 ,
= 4 2 = 8 . = + = 5 + 6 = 11 . : = 11 : 8 = 11: 8
11:8
3. , , . 10 , 3 . .
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= 10 , = 3
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= = 10 3 = 7
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=+=10+3=13
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=-=10-3=7
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=+ =10+3=13
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= 10 , =3.
7 13
1. M N. , =12 , =8 , N=10. MN.
2. =16 . , .
3. 48 1:2, . , = .
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4. , , . , 4,2, 5,1 .
5. ,, . , , 24.
6. , . 14 .. . , . .
7. 35 . , , ,, . , =12, =11,=12,=26. , , , , .