Q. 45.0( 1 Vote )

# Solve the followi

Given Differential equation is: ……(1)

Let us assume z = x + y

Differentiating w.r.t x on both sides we get,   ……(2)

Substituting (2) in (1) we get,  Bringing the like variables to same side (i.e., Variable seperable technique) we get, Integrating on both sides we get,  We know that:

(1) (2)  tan–1z = x + C

Since z = x + y we substitute this,

tan–1(x + y) = x + C

x + y = tan(x + C)

The solution for the given Differential equation is x + y = tan(x + C).

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