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CBSE XII
>>
Math
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Inverse Trigonometric Functions
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Q)
If
3
tan
−
1
x
+
4
cot
−
1
x
=
2
π
then
x
=?
(
a
)
1
(
b
)
0
(
c
)
−
1
(
d
)
1
√
3
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