6 6 6 0 3 18 3 0 111 3 4 1432 2011 1432 2011 1 3 1432 2011 1 2011 3 1 3 5 =n(n+2) a+b=1 n+1 pgcd(a,b) 1 d 1 1 b b2-a d b a a d 40 z 3 2 z 2 16 0 (E) ...( E ) 1 2 (2)3 2(2) 2 16 8 8 16 0 (z 2)(az 2 bz c az 3 (b 2a)z 2 (c 2b)z 2c c،b ،a a 1 b 4 c 8 a 1 b 2a 2 c 2b 0 2c 16 (E) z 2 4z 8 0 z2 42 4(8) 16 (4i)2 z1 z1 (E) z2 (E) z 2 4z 8 0 4 4i 4 4i 2 2i ; z 2 2 2i 2 2 2 ;-2-2i ;-2+2i z z 1 2 2 2ei(0) 2ei(2 ) 73 (2)2 (2)2 82 2 2 i( ) i(5) 2 2 2 2 4 2 2e 4 i) 2 2( i) 2 2e 2 2 2 2 2 2 i() i( 3) 2 2 2 2 4 2 2e 4 z2 2 2i 2 2( i) 2 2( i) 2 2e 2 2 2 2 2 2 z1 2 2i 2 2( zD 2 2i zB 2 z A 2 2i C yC 2 2 ABCD xC 2 4 1 D B A 2 zC C DC AB AB(4; 2) ABCD z C 2 4i C(2;4) 3 z F zE F E i( ) zE ZB e 2 (zC zB ) i(4i) 4 z E ZB 4 6 i( ) zF ZD e 2 (zC z D ) i(4 2i) 2 4i z F ZD 2 4i 4 6i F E zF z A i zE z A 4 z F z A (4 6i) (2 2i) 2 8i i(2i 8) i zE zA (6) (2 2i) 8 2i (8 2i) AEF (AE; AF) + 2k ; k Z 2 zF z A i zE z A َو A ABC 60 D 0; g ( x ) x 2 1 ln x 0 lim g ( x ) x 0 lim ( ln x ) > x 0 g (x ) x 2 (1 lim g(x)=+ x+ g '(x ) 2x 1 g 2 lim (x +1)=1 x 0 1 1 ln x ) x2 x x ln x 1 1 lim lim 0 lim 2 x + x x+ x x+ x 1 2x 2 1 x x g 44 2 x 2 2 2x 2 1 0 2x 2 1 D g '(x ) 2x g '(x ) 1 2x 2 1 x x 2 0; 2 2 ; 2 g g( 2 3 1 ) ln 2 1.85 2 2 2 3 g g( 2 0 2 ( 2 3 1 ; ln 2) 2 2 2 g g (O ; i ; j ) D 0; 1 ln(x ) f (x ) x 2 x (C ) 0 1 f lnx 1 1 lim ( x )=- lim (x+ 2 )= 2 > > x 0 x 0 lim f(x)=- > x 0 (C ) lnx lim ( x )=0 x + lim f (x ) x y x (C ) 1 lim (x+ 2 )=+ x + 1 2 () 1 ln(x) =0 lim [f(x)-(x+ 2)]= lim x x + x + () (C ) 1 f (x ) (x ) 2 ln x 3 (1; ) 2 () (C ) () (C ) () (C ) g (x ) f '(x ) 2 x ln x 0 x 1 ln x 0 x 1 ln x 0 D 0 x 1 2 x 1 ( )(x ) (1)(ln x ) 1 ln x x 2 1 ln x g (x ) x f '(x ) 1 1 2 2 x x2 x2 x f D f f ' D 75 D g x f ( x) 0 f x 3 A (1; ) 2 y 2(x 1) 3 2 (C ) f '(1) (T ) 12 1 ln1 2 12 f (1) 3 2 y f '(1)(x 1) f (1) (T ) : y 2x 1 2 ;1 f ( ) 0 3 f (1) 1 ;1 2 3 2 f 1 ;1 2 () (T ) h (x ) 1 2 f (x ) 0 1 1 1 ln 2 f ( ) 1 2 ln 2 0.39 1 2 2 2 ( ) 2 1 f ( ) f (1) 0 2 (T ) 1 2 1 1 x x (ln x ) 2 2 2 2 4 (C ) D x h '(x ) f h h '(x ) x 1 1 1 1 1 ln x (2)(ln x )( ) x f (x ) 2 2 x 2 x D 2 (C ) x 1 ; x e ; y 0 h(e) e e 1 2 2 h(1) 1 e S f (x )dx 4 h (x ) 1 4[ h (e ) h (1)] cm 2 e 1 S4 76 e2 e 1 2e 2 2e 2 18.21 cm 2 2 1 (P) (R) n'(1;2;0) n(-2;1;5) (P) (R) n .n'=(-2)(1)+(1)(2)+(5)(0)=0 (D) (P) (R) (D) (P) (R) u.n' 0 C (P) n.BC u.n' (2)(1) (1)(2) (1)(0) 0 u.n 0 C (R) C (R) (1) 2(4) 7 0 C (P) (2)(2) (1)(6) (5)(2) 0 u.n (2)(2) (1)(1) (1)(5) 0 (P) (D) B(1;-2;1) (P) 2x y 5z D 0 (P) 2(1) (2) 5(1) D 0 (P) െʹ ݔ ݕ ͷ ݖെ ͳ ൌ Ͳ : 2x y 5z 1 0...(1) ® ¯ x 2y 7 0...(2) 5y 5z15 0 (4y14) y 5z1 0 (D) x 2y 7 z y 3 x 2m 7 ° (D ):® y m ° z m 3 ¯ mࡾ א u(2;1;1) y z 3 0 x 2y 7 ° (D ):® y y ° z y 3 ¯ y m D C(-1;4;-1) m = -4 C(-1;4;-1) u(2;1;1) (R) 77 1 D (P) u(2; 1;1) x 2 1 y 4 z 1 C(-1;4;-1) (2 1) 2( 4) 7 0 D R P 2(21) ( 4) 5(1) 1 0 A(5;-2;-1) d3 d2 d1 d1 | 2(5) (2) 5(1) 1| (2)2 (1)2 (5)2 d2 18 18 30 3 30 3.286 30 5 30 | (5) 2(2) 7 | (1)2 (2)2 (0)2 6 6 5 2.683 5 5 d3 (d1 )2 (d 2 )2 18 3 2 3.242 2 AM (t) AM (2t 4)2 (5 t)2 (t 1)2 AM [(1 2t) 5]2 [(3 t) (2)]2 [t (1)]2 AM 6t 2 24t 42 AM 4t 2 16t 16 25 10t t 2 t 2 2t 1 '(t) '(t) 12t 24 2 6t 2 24t 42 6t 12 6t 2 24t 42 x 2 f ( x) 0 x 18 (2) 18 3 2 3.242 D (D) H(5;1;2) A t 2 A(5;-2;-1) H M( 1+2 t ; 3-t ; t ) 78 H n 2 «Q-3)=2n -n 2 1=2(1) -(1) n=1 «Q-3)=2n2-n «Q-3)+ 4(n+1)-3 =2(n+1)2-(n+1) «Q-3)+(4n+1)=2n2+3n+1 «Q-3)+(4n+1)= «Q-3)+(4n+1)= 2n2-n+(4n+1)= 2n2+3n+1 n un u1 r u2+u4=18 ®u +u +u +u =132 ¯ 6 8 10 12 .u2 u1 r ; u4 u1 3r ; u6 u1+2r=9...(1) ®u +8r=33...(2) ¯ 1 u1 9 2r 1 u1 5r; u8 u1 7r; u10 u1 9r;u12 2u1+4r=18 ®4u +32r=132 ¯ 1 r 4 un Sn 6r 24 u1 (n 1)r 1 4(n 1) 4n 3 n Sn u1 11r Sn u1 u2 u3 ... un 1 5 9 ... (4n 3) 2n2 n u1 u2 u3 ... un n n n(4n 2) (u1 un ) (1 4n 3) n(2n 1) 2n2 n 2 2 2 79
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