DLMF:4.23.E25 (Q1777): Difference between revisions

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Property / constraint
 

x ( - , - 1 ] 𝑥 1 {\displaystyle{\displaystyle x\in(-\infty,-1]}}

x\in(-\infty,-1]
Property / constraint: x ( - , - 1 ] 𝑥 1 {\displaystyle{\displaystyle x\in(-\infty,-1]}} / rank
 
Normal rank

Revision as of 16:01, 30 December 2019

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DLMF:4.23.E25
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    arccos x = π i ln ( ( x 2 - 1 ) 1 / 2 - x ) , 𝑥 minus-or-plus 𝜋 𝑖 superscript superscript 𝑥 2 1 1 2 𝑥 {\displaystyle{\displaystyle\operatorname{arccos}x=\pi\mp i\ln\left((x^{2}-1)^% {1/2}-x\right),}}
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    x ( - , - 1 ] 𝑥 1 {\displaystyle{\displaystyle x\in(-\infty,-1]}}
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