Предмет: Алгебра, автор: Аноним

Допоможіть розв‘язати
Знайдіть tg2B(бета) , якщо tg B=6
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Ответы

Автор ответа: Аноним
1

Ответ: -12/35

Объяснение:

tg2β=2tgβ/(1-tg²β)

tg2β=2*6/(1-36)=-12/35

Автор ответа: NNNLLL54
0

Ответ.

Формула тангенса двойного угла   tg2\beta =\dfrac{2\, tg\beta }{1-tg^2\beta }  .

Подставляем в неё значение  tg\beta =6  .

tg2\beta =\dfrac{2\cdot 6}{1-6^2}=\dfrac{12}{1-36}=-\dfrac{12}{35}

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