Предмет: Математика, автор: neporadn2610

Упростить sin(3*pi/2 - a)*tan(pi - a)

Ответы

Автор ответа: pahtakor1310
1

Ответ:

Используя тригонометрические тождества, можно переписать:

sin(3*pi/2 - a) = -cos(a)

tan(pi - a) = -tan(a)

Тогда:

sin(3*pi/2 - a)*tan(pi - a) = (-cos(a)) * (-tan(a)) = cos(a) * tan(a) = sin(a) / cos(a) * sin(a) / cos(a) = sin^2(a) / cos^2(a) = tan^2(a)

Итак, sin(3*pi/2 - a)*tan(pi - a) можно упростить до tan^2(a).

Пошаговое объяснение:

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