12 ANO A - Fic-trig.limites-4-12.pdf
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Transcript of 12 ANO A - Fic-trig.limites-4-12.pdf
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8/17/2019 12 ANO A - Fic-trig.limites-4-12.pdf
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Ficha de Trabalho-Trigonometria 4 - LIMITES
1. Calcule os limites das funções indicadas:
1.1 x
xsen x
)3(lim0
1.2 x xsen
x 5)2(lim
0 1.3
)4()6(lim
0 xsen xsen
x 1.4
)9()3(lim
0 xsen xsen
x
1.51
)1(lim
2
1
x
xsen
x 1.6
x
xsen
x
)(lim
2
0 1.7
)(
lim2
2
0 xsen
xsen
x 1.8
xsen x
x
lim
1.8 x
x
x 2
coslim
2
1.9 x
senx x
x cos1
2lim
0
1.10 xsen x x
x
2
0lim 1.11
x
xsen x
x
22cos1
lim0
1.12
20
2cos1lim
x
x
x
1.13
)(
)cos(1lim
0
xsen
x
x
1.14
x
xsen xsen
x
35lim
0
1.15 xtg x xsen
x 25
)(3lim
0 1.16
x
x
x cos21
6lim
0
1.17
x
x
x 2
4cos1lim
0
1.18
t
t sen
t 33
1lim
1
1.19
6
3coslim
6
x
senx x
x
1.20
65
2lim
22
x x
xsen
x 1.21
22
lim2
2
xsen
x x
x
1.22
6
2cos21lim
4
xsen
x
x
1.23)cos(2
2lim
2a
a
x
1.24
x
xsen
x 2
1lim,
2
2. Seja )cos(1)( x x f uma função real de variável real
2.1 Sabendo que3
5)( a f e
,2
,
acalcule:
2.1.1
asen 2
2
2.1.2
2cos
a
2.2 Mostre que a função é par.
2.3 Calcule x
x f
x
)(lim
0 2.4 Calcule
3
3)(
lim
3
x
f x f
x
SO UÇÕ S: 1.1 3 1.25
2 1.3
2
3 1.4 -
4
1 1.5 2 1.6 0 1.7 1 1.8 1.9
2
1 1.10 2 1.11 -
1 1.12
2
1 1.13 0 1.14 2 1.15 1 1.16 1.17 2 1.18 -
3
1 1.19 -2 1.20 -1 1.21 2 1.22 32 1 23
2
1
1.24 0 2.1.1 -9
1 2.1.2 -
6
6 2.3 0 2.4
2
3