If 𝑓(π‘₯, 𝑦) = π‘₯

2

tanβˆ’1

(

𝑦

π‘₯

) βˆ’ 𝑦

2

tanβˆ’1

(

π‘₯

𝑦

), then verify 𝑓π‘₯𝑦 = 𝑓𝑦π‘₯

asked by guest
on Jan 08, 2025 at 9:14 pm



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