AP EAMCET Engineering 2018 Apr 22 Shift 1 Paper

Section: Mathematics
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Question : 67 of 160
 
Marks: +1, -0
If y =
2
√a2−b2
tan−1[√
a−b
a+b
t
a
n
x
2
]
, then
d2y
dx2
|x=
Ï€
2
=
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