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CUET
-- Mathematics - Section B1
Differential Equations
Differential equation of all parabolas having their axes of symmetry coincident with the axis of X is:
$yy_1+y_1^2=0$
$yy_2+y_1^2=0$
Both A and B
None of these
$y^2=4a(x-h)⇒2yy_1=4a$
Differentiate again to get: