Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
If the integral
∫
cos
8
x
+
1
cot
2
x
−
tan
2
x
d
x
=
A
cos
8
x
+
k
\int \frac{\cos 8x + 1}{\cot 2x - \tan 2x} dx = A \cos 8x + k
∫
c
o
t
2
x
−
t
a
n
2
x
c
o
s
8
x
+
1
d
x
=
A
cos
8
x
+
k
where
k
k
k
is an arbitrary constant, then
A
A
A
is equal to : [JEE-MAIN ONLINE-2013] (1)
1
16
\frac{1}{16}
16
1
(2)
1
8
\frac{1}{8}
8
1
(3)
−
1
16
-\frac{1}{16}
−
16
1
(4)
−
1
8
-\frac{1}{8}
−
8
1
Browse the problem library