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kg/m^3
F=-2\pi a^{2}\int_{0}^{1} x\sigma_{z}(x,0)dx=\frac{3\pi a K}{4}\int_{0}^{1}\chi(t)dt\\=\frac{3aK}{2}\left[\delta-\int_{0}^{1}\frac{xf(x)}{\sqrt{1-x^{2}}}dx\right]
I({\overline{X}_n})\equiv\left\{x \in R \quad | \quad \left(\overline{X}_n - \frac{\tilde{\sigma}_n}{\sqrt{n}}t(n-1, \alpha /2) < x
< \overline{X}_n + \frac{\tilde{\sigma}_n}{\sqrt{n}}t(n-1, \alpha /2)\right)\right\}
 {}
  3x + y + z = 10 & \\
  x + 5y + 2z = 21 & \\
  x + y + 5z = 30 &
P(H=1)&=&P\bigg(\bigcap_{p:{\rm prime}}(E_p\cap F_p)^c\bigg)\\
&=&\prod_{p:{\rm prime}}P<span class=