Решить пункт «б»
ЛЕКЦИИ:
https://www.dropbox.com/s/3zdnta8lkunmqik/%D0%9B%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%209.pdf?dl=0
https://www.dropbox.com/s/ayo5uq9nm1jkaqa/%D0%9B%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%2010.pdf?dl=0