UPSC NDA II 2018 Mathematics Solved Paper

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Question : 99 of 120

Marks: +1, -0

What is the solution of the differential equation ‌‌

dx

dy

=‌‌

x+y+1

x+y−1

?

[NDA II 2018]

y–x+4‌ln(x+y)=c
y+x+c‌ln(x+y)=c
y–x+ln(x+y)=c
y+x+2‌ln(x+y)=c

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