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LymarIvan
@LymarIvan
August 2022
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Найдите значение выражения:
2) 15×([tex] \frac{2}{5} [/tex]a-[tex] \frac{1}{3} [/tex]b)-18×(-[tex] \frac{2}{9} [/tex]b-[tex] \frac{1}{18} [/tex]a), если a=-12, b=0,5
У меня получился ответ -60,5, а в учебнике - -84,5. Что не так?
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Косинус13
=6а-5в+4в+а=7а-в=7*(-12)-0,5=-84-0,5=-84,5
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