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: 2006/2007:
6 1
) 5: (
3a: n n n 2 ( 1)b n n b a: )15 n n>2 )2
2nn
n2-1 5 n-4 n>4 )3
5 x2-y2=8: INx IN ) 4
2
1 1 1
) 5: (
b=924 , a=792: )1a )2 b a b a: )3
b7 3
924 792A=
1,5 2
1,5
) 6:(
: )1
10 10
4 11
8 48 4
A
1
22 1 2
9 9( )3 3
n n
n nB
n IN
7: )2 2 83 10 4 10 12 10C 5 )3 3a 5 3b a2+ab+b2
3 1,5 1,5
) 4: (
1 (a b :a b 2 2 31a b ab=3
a3-b3 a-b: (2x-3)3-x3-9(x-3): ) 2
2
2
:
http://www.novapdf.comMoustaouli http://arabmaths.ift.fr
: 2006/2007:
5 1
) 5( :
4: n 2 16a n n 2 3 1b n n b a: )117 n )2 625n n
17 5 n2+1 5 n-3 n>3 )3 x2-y2=12: INx IN )4
2
1
1 1
) 5: (
b=1176 , a=945: )1 945 )2a )3 b a b a: )4
b =6bA
2 0,5 1
1,5
) 6: (
): )1 6 2)( 3 2) 3 2A A A2
: )28
6 7
4 10 0,000000529 10 20 10
C
2 )3 3a 2 3b 2 2A a ab b
3
1,5 1,5
) 4: (
1 (a b2: a b ab=1
3 a2+b2: 31 1a b
(x+1)3+x 3- (4x2-1): ) 2
2
2
:
http://www.novapdf.comMoustaouli http://arabmaths.ift.fr