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Mathematics
Mathematics
Problem
∫
x
−
sin
x
1
−
cos
x
d
x
=
\int \frac{x - \sin x}{1 - \cos x} dx =
∫
1
−
c
o
s
x
x
−
s
i
n
x
d
x
=
(a)
x
cot
x
2
+
c
x \cot \frac{x}{2} + c
x
cot
2
x
+
c
(b)
−
x
cot
x
2
+
c
-x \cot \frac{x}{2} + c
−
x
cot
2
x
+
c
(c)
cot
x
2
+
c
\cot \frac{x}{2} + c
cot
2
x
+
c
(d) None of these (a)
x
cot
x
2
+
c
x \cot \frac{x}{2} + c
x
cot
2
x
+
c
(b)
−
x
cot
x
2
+
c
-x \cot \frac{x}{2} + c
−
x
cot
2
x
+
c
(c)
cot
x
2
+
c
\cot \frac{x}{2} + c
cot
2
x
+
c
(d) None of these
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