12.º ANO - 2020/2021

qa 1
254 e 192
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qa 2
1920 e 15252
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1.º TESTE
1. A	2. C	3. 18 564	4. C; 15 561	5. D; 33 488 640; 2 419 200	6. D; 43 545 600
7. 1 162 800; 26 666 640; 25 704 000	9. n=22
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qa 3
0,2
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qa 4
0,25
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qa 5
y=-x/2+1
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2.º TESTE
1. B	2. C; são	3. 6%	4. 11/16; 5	5. B; 3,9
6. A; y=-3x+4	7. A	8. y=-4x; 3,4
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qa 6
É
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qa 7
rq(3)
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qa 8
PI 1/3
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3.º TESTE
1. C; 83,4%	2. mar 2026; 4,6	3. A	4. B; [4/9,1/2[		5. A; [-5,-3[; B
6. não; y=1	7. -6; y=-4x	8. -2/3 e 0	9. -2pi/9
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qa 9
z=rq(6)-2rq(6)i v z=-rq(6)+2rq(6)i
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qa 10
z=rq(6)/2 e^(i(5pi/6))
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4.º TESTE
1. 36%		2. D	3. -5pi/12 e -pi/12	4. 4; A; y=3x
5. 0,36		6. C	7. C	8. B; rc(3)e^(ipi/15), rc(3)e^(i11pi/15), rc(3)e^(i7pi/5); sim
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