Question

обчислить sin83°sin37°-cos83°cos37°​

Answer 1

Ответ:

Объяснение:

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Answer 2

$\sin(83°) \sin(37°) - \cos(83°) \cos(37°) = - ( \cos(83°) \cos(37°) - \sin(83°) \sin(37°) ) = - \cos(83° + 37°) = - \cos(120°) = - ( - \frac{1}{2} ) = \frac{1}{2} = 0.5$

Ответ: 0.5