tex]...

August 2022 1 12 Report

Вычислить!!Числа градусы которые возле синусов косинусов [tex] \frac{cos66cos24-sin24sin66}{sin24sin54+cos24sin36} [/tex]

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GREENDEY $\frac{cos66cos24-sin24sin66}{sin24sin54+cos24sin36} = \frac{cos(66+24)}{sin24sin54+cos24sin36} = \\ 
=\frac{cos90}{sin24sin54+cos24sin36} = 0 \\$

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