Answer to Question #79276 in Differential Equations for prromise ayansola

Question #79276

2. Solve the initial value problem (1+y^2)dx+(1+x^2)d,y(0)=−1

Tan^−1 x−tan^−1 y=−π/4
Tan^−1 x+tan^−1 y=−π/4
Tan^−1 x+tan^−1 y=−π/4
-Tan^−1 x−tan^−1 y=−π/4

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