Q. 27

Mark the correct alternative in each of the following:

The solution of the differential equation is

A. (x + y) ex+y = 0

B. (x + C) ex+y = 0

C. (x – C) ex+y = 1

D. (x – C) ex+y + 1 = 0

Answer :


Put x + y = z


Differentiating w.r.t x we get,




Substituting values, we get





Integrating both sides







Putting value of z, we get


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