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Byju's Answer
Standard XII
Mathematics
Graphs of Basic Inverse Trigonometric Functions
If α is two s...
Question
I
f
α
is two solution of equation
tan
−
1
x
+
cot
−
1
x
=
2
tan
−
1
x
,
t
h
e
n
α
2
is equal to
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Solution
tan
−
1
x
+
cot
−
1
x
=
2
tan
−
1
x
tan
−
1
x
+
tan
−
1
1
x
=
2
tan
−
1
x
tan
−
1
⎛
⎜ ⎜ ⎜
⎝
x
+
1
x
1
−
x
1
x
⎞
⎟ ⎟ ⎟
⎠
=
2
tan
−
1
x
2
tan
−
1
x
=
π
2
tan
−
1
x
=
π
4
x
=
1
α
=
1
α
2
=
1
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