Предмет: Математика, автор: AleksandrVoskoboev18

cos(a-b)+cos(a+b). cos(a+п/4)+sin a Спростіть вираз будь - ласка

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Автор ответа: xlebusheek

0

Ответ:

$cos(a - b) + cos( {a}^{2} + 2ab + {b}^{2} )cos(a + \frac{p}{4} ) + sin(a)$

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