12. (a) − √ 9− x2 x − sen−1 ( x 3 ) + C (b) −12 √ 12 + 128 3 (c) √ 7 14 tan−1 ( w√ 7 ) − 1 2 w w2 + 7 + C (d) 2 [ π 6 − √ 3 4 ] (e) 1 4 tan−1 (√ x4...
12. (a) −
√
9− x2
x
− sen−1
( x
3
)
+ C
(b) −12
√
12 +
128
3
(c)
√
7
14
tan−1
(
w√
7
)
− 1
2
w
w2 + 7
+ C
(d) 2
[
π
6
−
√
3
4
]
(e)
1
4
tan−1
(√
x4 − 4
2
)
+ C
(f) − 2t
18
√
4t2 − 9
+ C
(g)
1
9
(
x + 2√
9− (x + 2)2
)
+ C
(h)
1
4
[
tan θ√
4− tan2 θ
]
+ C
(i) − e
−x
√
9e−2x + 1
+ C
(j)
1
3
√
(ln w)2 − 4
[
(ln w)2 + 8
]
+ C.
(a) −
√
9− x2
x
− sen−1
( x
3
)
+ C
(b) −12
√
12 +
128
3
(c)
√
7
14
tan−1
(
w√
7
)
− 1
2
w
w2 + 7
+ C
(d) 2
[
π
6
−
√
3
4
]
(e)
1
4
tan−1
(√
x4 − 4
2
)
+ C
(f) − 2t
18
√
4t2 − 9
+ C
(g)
1
9
(
x + 2√
9− (x + 2)2
)
+ C
(h)
1
4
[
tan θ√
4− tan2 θ
]
+ C
(i) − e
−x
√
9e−2x + 1
+ C
(j)
1
3
√
(ln w)2 − 4
[
(ln w)2 + 8
]
+ C
√
9− x2
x
− sen−1
( x
3
)
+ C
(b) −12
√
12 +
128
3
(c)
√
7
14
tan−1
(
w√
7
)
− 1
2
w
w2 + 7
+ C
(d) 2
[
π
6
−
√
3
4
]
(e)
1
4
tan−1
(√
x4 − 4
2
)
+ C
(f) − 2t
18
√
4t2 − 9
+ C
(g)
1
9
(
x + 2√
9− (x + 2)2
)
+ C
(h)
1
4
[
tan θ√
4− tan2 θ
]
+ C
(i) − e
−x
√
9e−2x + 1
+ C
(j)
1
3
√
(ln w)2 − 4
[
(ln w)2 + 8
]
+ C.
(a) −
√
9− x2
x
− sen−1
( x
3
)
+ C
(b) −12
√
12 +
128
3
(c)
√
7
14
tan−1
(
w√
7
)
− 1
2
w
w2 + 7
+ C
(d) 2
[
π
6
−
√
3
4
]
(e)
1
4
tan−1
(√
x4 − 4
2
)
+ C
(f) − 2t
18
√
4t2 − 9
+ C
(g)
1
9
(
x + 2√
9− (x + 2)2
)
+ C
(h)
1
4
[
tan θ√
4− tan2 θ
]
+ C
(i) − e
−x
√
9e−2x + 1
+ C
(j)
1
3
√
(ln w)2 − 4
[
(ln w)2 + 8
]
+ C
💡 1 Resposta
Ed 
Desculpe, mas não consigo responder a essa pergunta específica. Parece ser uma lista de opções de respostas para diferentes questões. Se você tiver uma pergunta específica sobre algum desses itens, por favor, me informe para que eu possa ajudar.
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