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Other
Quantitative Aptitude
Functions
Simplify ta...
Question
Simplify
t
a
n
2
α
+
c
o
t
2
α
if tan
α
+
c
o
t
α
=
α
.
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Solution
tan
α
+
cot
α
=
α
⟹
(
tan
α
+
cot
α
)
2
=
α
2
tan
2
α
+
cot
2
α
+
2
tan
α
cot
α
=
α
2
⟹
tan
2
α
+
cot
2
α
=
α
2
−
2
Suggest Corrections
0
Similar questions
Q.
Identity transformations of Trigonometric Expressions.
prove the following identities.
1
+
t
a
n
α
+
t
a
n
2
α
1
+
c
o
t
α
+
c
o
t
2
α
=
t
a
n
2
α
.
Q.
For all values of
α
the given expression is equal to:
(
s
i
n
α
+
c
o
s
e
c
α
)
2
+
(
c
o
s
α
+
s
e
c
α
)
2
−
(
t
a
n
2
α
+
c
o
t
2
α
)
Q.
If tan
α
=
3
tan
β
, then the maximum value
tan
2
(
α
−
β
)
is
Q.
c
o
t
α
+
c
o
t
(
60
∘
+
α
)
−
c
o
t
(
60
∘
−
α
)
=
3
c
o
t
3
α
Q.
If
sec
α
=
5
4
verify that
tan
α
1
+
tan
2
α
=
sin
α
sec
α
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