10 Replies
@Apu
i got this ans

Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.but the given key shifts every to one side and says
\arctan x+\arctan y+\frac{1}{2}\ln\left(\left|\left(1+x^{2}\right)\left(1+y^{2}\right)\right|\right)=c

@SirLancelotDuLac
Mera bhi yehi aara
I think there is a mistake in the answer key
I am also getting the same thing as you
Yep ,thanx ppl
+solved @Prachi @SchrodingerBilla
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