35 БАЛЛОВ Решите задачу НА ЛИСТОЧКЕ. Created by widownes. algebra-ru

35 БАЛЛОВ Решите задачу НА ЛИСТОЧКЕ...

April 2022 2 10 Report

35 БАЛЛОВ
Решите задачу НА ЛИСТОЧКЕ

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$\frac{\sin 100^{\circ}\cdot \cos 40^{\circ}-\cos 100^{\circ}\cdot \sin 40^{\circ}}{2\sin 15^{\circ}\cdot \cos 15^{\circ}}=\frac{\sin(100^{\circ}-40^{\circ})}{\sin 30^{\circ}}=\frac{\sin 60^{\circ}}{\sin 30^{\circ}}=\frac{2\sin 30^{\circ}\cdot \cos 30^{\circ}}{\sin 30^{\circ}}=2\cos 30^{\circ}$

Ответ: 2 cos 30°

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bb573878

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Ответ:

√3

Объяснение:

``````````````````````````````````````````````````

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Answers & Comments

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