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Problem
Problem
The value of expression
sin
3
x
1
+
cos
x
+
cos
3
x
1
−
sin
x
\frac{\sin^3 x}{1 + \cos x} + \frac{\cos^3 x}{1 - \sin x}
1
+
c
o
s
x
s
i
n
3
x
+
1
−
s
i
n
x
c
o
s
3
x
is/are a.
2
cos
[
π
4
−
x
]
\sqrt{2} \cos \left[ \frac{\pi}{4} - x \right]
2
cos
[
4
π
−
x
]
b.
2
cos
[
π
4
+
x
]
\sqrt{2} \cos \left[ \frac{\pi}{4} + x \right]
2
cos
[
4
π
+
x
]
c.
2
sin
[
π
4
−
x
]
\sqrt{2} \sin \left[ \frac{\pi}{4} - x \right]
2
sin
[
4
π
−
x
]
d. None of these
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