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The function u=e^x sinx , v=e^x cosx sat...

The function `u=e^x sinx , v=e^x cosx` satisfy the equation (a) `v (du)/(dx)-u(du)/(dx)=u^2+v^2` (b) `(d^2u)/(dx^2)=2v` (c) `d^2v)/(dx^2)=-2u` (d) `(du)/(dx)+(dv)/(dx)=2v`

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