Вычислить

1. \(\log\_{0,25}\cos{\cfrac{\pi}{4}};\)
2. \(\log\_{2}\sin{\cfrac{\pi}{6}};\)
3. \(\log\_{3}\ctg{\cfrac{\pi}{3}};\)
4. \(\log\_{9}\tg{\cfrac{\pi}{3}};\)
5. \(\log\_{\frac{1}{3}}\tg{\cfrac{\pi}{6}};\)
6. \(\log\_{9}\ctg{\cfrac{\pi}{6}}.\)

Ответ:

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