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The integrating factor of the differential equation  is

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Concept: 

Integrating factor, (IF) for a differential equation, , where P and  Q are given continuous function of y. 

IF =  

Calculation:

Given differential equation

Now, this differential equation is in the form

where, P(x) = x and Q(x) = x

Integrating Factor (I.F.) = 

I.F. =  =  

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