DLMF:4.26.E21 (Q1837)

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DLMF:4.26.E21
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    x arccos x d x = ( x 2 2 - 1 4 ) arccos x - x 4 ( 1 - x 2 ) 1 / 2 , 𝑥 𝑥 𝑥 superscript 𝑥 2 2 1 4 𝑥 𝑥 4 superscript 1 superscript 𝑥 2 1 2 {\displaystyle{\displaystyle\int x\operatorname{arccos}x\mathrm{d}x=\left(% \frac{x^{2}}{2}-\frac{1}{4}\right)\operatorname{arccos}x-\frac{x}{4}(1-x^{2})^% {1/2},}}
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    DLMF:4.26.E21
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