11.º ANO - 2019/2020

qa 1
11
_________________________________________________________________________________
qa 2
3-rq(3)
_________________________________________________________________________________
1.º TESTE
1. 29,3		2. B	3. C; 5,57	4. D	5. -rq(6)/3; C		6. 27rq(15)/32; 1,84
7. D	8. ]-1,1/2]	9. [-1,5]; 7/2
_________________________________________________________________________________
qa 3
x=2/3
_________________________________________________________________________________
qa 4
155,1
_________________________________________________________________________________
qa 5
(3,1,-6) e (-3,-1,6), por exemplo
_________________________________________________________________________________
2.º TESTE
1. D	2. B	3. x=-pi/24 v x=-5pi/24		4. pi/6		5. C; x^2+y^2-2x-2y=0	6. C; 99,9; 1,9
7. C; 27		8. x+z-6=0; (rq(2)/2+4,-rq(2)/2,-1)	9. (-4,7,-15)
_________________________________________________________________________________
qa 6
37
_________________________________________________________________________________
qa 7
-2^(n-1)x3^(5-n)
_________________________________________________________________________________
3.º TESTE
1. 38,9; 0,62	2. B; x+y-z=0	3. A	4. B	5. crescente; 25	6. 3,97026; [4,+inf[, ]-inf,3], não existe e 3
7. A	8. D	9. 1525		10. -71		11. 4096(-5/4)^(n-1)	12. 4/9
_________________________________________________________________________________
qa 8
-2
_________________________________________________________________________________
qa 9
-3+9/(x+5/2)
_________________________________________________________________________________
4.º TESTE
1. D	2. 21:10	3. 1/3		4. C	5. 1/9; -15/2	6. A	7. B	8. C; 0 e 7/2
9. ]-inf;3,08]		10. ]-inf,3/2]U[3,+inf[; 93/20		11. 7,5
_________________________________________________________________________________