$$zos^{2}\frac{\pi}{16}+\cos^{2}\frac{3\pi}{16}+\cos^{2}\frac{5\pi}{16}+\cos^{2}\frac{7\pi}{16}=...$$
$\frac{\pi ozs^{2}}{16}+1.0380602337443566681478190912369189$
$\frac{625000000000000000000000000000000\pi ozs^{2}+10380602337443566681478190912369189}{10000000000000000000000000000000000}$
