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Не буду условие писать, сразу розложу для формул:
![\frac{cos(59+360)-3sin(90+59)}{3sin(90-59)-5sin(149+360)}= \\ \\
\frac{cos(59)-3cos(59)}{3cos(59)-5sin(149)}= \frac{-2cos(59)}{3cos(59)-5sin(90+59)}= \frac{-2cos(59)}{3cos(59)-5cos(59)}= \\ \\
\frac{-2cos(59)}{-2cos(59)} =1 \frac{cos(59+360)-3sin(90+59)}{3sin(90-59)-5sin(149+360)}= \\ \\
\frac{cos(59)-3cos(59)}{3cos(59)-5sin(149)}= \frac{-2cos(59)}{3cos(59)-5sin(90+59)}= \frac{-2cos(59)}{3cos(59)-5cos(59)}= \\ \\
\frac{-2cos(59)}{-2cos(59)} =1](https://tex.z-dn.net/?f=+%5Cfrac%7Bcos%2859%2B360%29-3sin%2890%2B59%29%7D%7B3sin%2890-59%29-5sin%28149%2B360%29%7D%3D+%5C%5C++%5C%5C+%0A+%5Cfrac%7Bcos%2859%29-3cos%2859%29%7D%7B3cos%2859%29-5sin%28149%29%7D%3D+%5Cfrac%7B-2cos%2859%29%7D%7B3cos%2859%29-5sin%2890%2B59%29%7D%3D+%5Cfrac%7B-2cos%2859%29%7D%7B3cos%2859%29-5cos%2859%29%7D%3D+%5C%5C++%5C%5C+%0A+%5Cfrac%7B-2cos%2859%29%7D%7B-2cos%2859%29%7D+%3D1++++)
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