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DLMF:19.22.E5 - MaRDI portal

DLMF:19.22.E5 (Q7136)

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DLMF:19.22.E5
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    2 p ± = ( p + x ) ( p + y ) ± ( p - x ) ( p - y ) , 2 subscript 𝑝 plus-or-minus plus-or-minus 𝑝 𝑥 𝑝 𝑦 𝑝 𝑥 𝑝 𝑦 {\displaystyle{\displaystyle 2p_{\pm}=\sqrt{(p+x)(p+y)}\pm\sqrt{(p-x)(p-y)},}}
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