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Rapsinincke

Rapsinincke

Answered question

2022-07-01

{ x arctan y = y arctan x x 2 x y + 4 y 2 = 4

Answer & Explanation

Camron Herrera

Camron Herrera

Beginner2022-07-02Added 16 answers

Without loss of generality we may suppose that x y. But if x > y, what is the sign of ( arctan y arctan x )? conclude that x = y and finish the job.

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