UPSC NDA 2 2012 Mathematics Paper

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Question : 86 of 120

Marks: +1, -0

The differential equation representing the family of curves y=asin‌(λx+α) is :

‌
d2y
dx2
+λ2y=0
‌
d2y
dx2
−λ2y=0
‌
d2y
dx2
+λy=0
None of the above

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