Question

驻讜谞拽爪讬讛 f, 讗砖专 诪讜讙讚专转 讘转讞讜诐 砖诇 讻诇 讛诪住驻专讬诐 讛讞讬讜讘讬讬诐, 诪拽讬讬诪转 诪砖讜讜讗讛 `2f(x) + f(1/x) = 3x` 诇讻诇 x 讞讬讜讘讬. 诪爪讗 讗转 讛驻讜谞拽爪讬讛.

Topics:
Algebra -> Algebraic Techniques Algebra -> Equations
Sources:
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