Синус, косинус и тангенс двойного угла
10-11 класс
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cos(pi\3+a)cos a + sin(pi\3+a)sin a= 0,5
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при каких а уравнение имеет решения 5cos3x + 12sin3x = a - 5
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Дана функция:f(x)=-3x^4-4x^2+20 Найдите : f’(-4) ,f’(1/2)
Сколькими способами можете составить пятизначное число из цифр 1,3,5,7,9. Решите задачу и обоснуйте выбор действия, используя терминологию по 2 залачам на выбор 1) теормтеко - множественную 2) принятую в начальном курсе математики
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Прошу решить задание на фото, очень нужно ,зависит моя оценка умоляю ,решите хотя бы половину
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Внимание кто будет халявить сразу жалоба!!!
косинус pi/6 - корень из 2 синус pi/4 + корень из 3 тангенс pi/3