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If $y=\sin (\log _e x)$ then $x^2 \large\frac{d^2y}{dx^2}+ x \large\frac{dy}{dx}=$

\[\begin {array} {1 1} (1)\;\sin (\log_ex) & \quad (2)\;\cos(\log_ex) \\ (3)\;y^2 & \quad (4)\;-y \end {array}\]

1 Answer

$(4)\;-y $
answered Nov 7, 2013 by pady_1
 
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