Mathematics - Differential Equation Question with Solution | TestHub

MathematicsDifferential EquationLinear DE / Red. LDEEasy2 minPYQ_2019
MathematicsEasynumerical range

Ify=y(x)is the solution of the differential equation,xdydx+2y=x2satisfyingy1=1,theny12is equal to

Options:

Answer:
D
Solution:

Given differential equation can be written as

dydx+2yx=x, which is a linear differential equation.

If=e2xdx=e2lnx=x2

Solution is

y.x2=x.x2dx

y.x2=x44+c

Since, given curve passes through1,1

c=34

Hence,yx=x24+34x2.

So,y12=4916.

Stream:JEESubject:MathematicsTopic:Differential EquationSubtopic:Linear DE / Red. LDE
2mℹ️ Source: PYQ_2019

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