... Elip l: a2 y2 + =1 25 a 25 y = y= 25 a 2 2 25 y a 25 a = = 25 25 3 V y A a; 25 a , B a; 25 a P= Page 26 l y c 10 100 100 125 a = 25 = 25 a ; 25 a = 25 a = AB = 0; 9 ... = Khi: m = thỡ PT 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 4 16 T l x + y + = 0 ,25 Khi: m = thỡ PT T l ( x )2 + ( y )2 = 16 Cõu VIa í (2,0 ) (1,0 ) 0 ,25 K : x > Ta cú: + ... z= = 2( ( 0 ,25 0 ,25 ) 4i i 4i = = +i + i + ( 3) 0 ,25 + i ) = cos + i sin 2 6 0 ,25 Theo cụng th c Moa-vr 2010 2010 2010 z 0 ,25 0 ,25 =3 D = | D + |= D = 17 Cõu 7: (1,0 ) 0 ,25 =2 cos...