/ 2/ 2\ / 2\ 2 3/ 2\ 2 2/ 2\ / 2\ 2 2/ 2\ 3/ 2\\
| / 2\ 2 / 2\ 3*sin \x /*cos\x / 2*x *sin \x / 6*x *cos \x /*sin\x / 6*x *cos \x /*sin \x /|
4*x*|3*cos\x / - 2*x *sin\x / - ------------------ + ------------- - --------------------- + ----------------------|
| 2/ 2\ 2/ 2\ 2/ 2\ 2 |
| 1 - cos \x / 1 - cos \x / 1 - cos \x / / 2/ 2\\ |
\ \1 - cos \x // /
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/ 2/ 2\
\/ 1 - cos \x /