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Mathematics, 26.11.2020 20:20 michelerin9486

If x^2 + y^2 + u^2 - v^2 = 0 and uv + xy = 0, prove that alpha (u, v)/alpha (x, y) = x^2 - y^2/u^2 + v^2.

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If x^2 + y^2 + u^2 - v^2 = 0 and uv + xy = 0, prove that alpha (u, v)/alpha (x, y) = x^2 - y^2/u^2 +...
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