COMEDK Exam 2012 Solved Paper

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Question : 163 of 180

Marks: +1, -0

If x=‌

1−t

1+t

,y=‌

2t

1+t

, then ‌

d2y

dx2

=

‌
2t
(1+t)2
‌
1
(1+t)4
‌
2t
(1+t)2
0

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