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Question
Mathematics
∫ ex((1-sinx/1-cos x))dx is equal to
Q.
∫
e
x
(
1
−
cos
x
1
−
s
in
x
)
d
x
is equal to
1949
184
Integrals
Report Error
A
−
e
x
t
an
(
2
x
)
+
C
31%
B
−
e
x
co
t
(
2
x
)
+
C
27%
C
−
2
1
e
x
t
an
(
2
x
)
+
C
30%
D
2
1
e
x
co
t
(
2
x
)
+
C
12%
Solution:
∫
e
x
(
1
−
cos
x
1
−
s
in
x
)
d
x
=
∫
e
x
(
2
s
i
n
2
2
x
1
−
s
in
x
)
d
x
=
∫
e
x
(
2
1
cose
c
2
2
x
−
co
t
2
x
)
d
x
=
2
1
∫
e
x
cose
c
2
2
x
d
x
−
∫
e
x
co
t
2
x
d
x
=
2
1
∫
e
x
cose
c
2
2
x
d
x
−
e
x
co
t
2
x
−
2
1
∫
e
x
cose
c
2
2
x
d
x
+
C
=
−
e
x
co
t
2
x
+
C