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The functions u=e^(x).sinx and v=e^(x).c...

The functions `u=e^(x).sinx` and `v=e^(x).cosx` satisfy the equation

A

a) `v(du)/(dx)-u(dv)/(dx)=u^(2)+v^(2)`

B

b) `v(du)/(dx)+u(dv)/(dx)=u^(2)+v^(2)`

C

c) `(du)/(dx)+(dv)/(dx)=2v`

D

d) `(du)/(dx)+(dv)/(dx)=2u`

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