Question

sina sin3a+sin5a/cosa+cos3a+cos5a

Answer 1

sin(a) * sin(3a) + (sin(5a))/(cos(a)) + cos(3a) + cos(5a)

Преобразовать выражения

(sin(a) * sin(3a))/1 + (sin(5a))/(cos(a)) + (cos(3a))/1 + (cos(5a))/1

Привести дроби к наименьшему общему знаменателю

(cos(a) * sin(a) * sin(3a))/(cos(a) * 1) + (sin(5a))/(cos(a)) + (cos(a) * cos(3a))/(cos(a) * 1) + (cos(a) * cos(5a))/(cos(a) * 1)

Вычислить произведения

(cos(a) * sin(a) * sin(3a))/(cos(a)) + (sin(5a))/(cos(a)) + (cos(a) * cos(3a))/(cos(a)) + (cos(a) * cos(5a))/(cos(a))

Решение

(cos(a) * sin(a) * sin(3a) + sin(5a) + cos(a) * cos(3a) + cos(a) * cos(5a))/(cos(a))