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Standard XI
Economics
Relationship between the Short Run Average and Marginal Cost Curves
13. Prove tha...
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13. Prove that tanx + 2tan2x + 4tan4x + 8cot8x = cotx
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Q.
∫
(
tan
x
+
2
tan
2
x
+
4
tan
4
x
+
8
cot
8
x
)
d
x
has the value
Q.
If
tan
x
+
2
tan
2
x
+
4
tan
4
x
+
8
cot
8
x
=
√
3
then the general solution of
x
=
Q.
Prove it :-
t
a
n
x
+
c
o
t
x
=
s
e
c
x
c
o
s
e
c
x
Q.
d
d
x
[
t
a
n
x
−
c
o
t
x
t
a
n
x
+
c
o
t
x
]
=
Q.
Show that
tanx
+
c
o
t
x
=
s
e
c
x
.
c
o
s
e
c
x
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Relationship between the Short Run Average and Marginal Cost Curves
Standard XI Economics
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