UPSC NDA I 2013 Mathematics Paper

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Question : 104 of 120

Marks: +1, -0

The differential equation of the curve y=sin‌x is

‌
d2y
dx2
+y‌
dy
dx
+x=0
‌
d2y
dx2
+y=0
‌
d2y
dx2
−y=0
B. ‌
d2y
dx2
+x=0

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