CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

Question : 21 of 29

Marks: +1, -0

Solve the differential equation :

x {\dy}- {\y} {\d} x=√{x^2+ {\y}^2} {\d} x

, given that

{\y}=0

when

x=1

.
OR
Solve the differential equation :

(1+x^2) \;{d y}/{d x}+2 x y-4 x^2=0

, subject to the initial condition

{\y}(0)=0

Solution:

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