Question

(9tga+4ctga)*sin2a-18sin^2a

Answer 1

Ответ:

Упростить тригонометрическое выражение.

Answer 2

To simplify the expression (9tga+4ctga)*sin2a-18sin^2a, we can start by factoring out common terms.

First, let's factor out "sin a" from the expression: sin a * [(9tg a + 4ctg a) * 2 - 18sin a]

Next, we simplify the term within the brackets: sin a * (18tg a + 8ctg a - 18sin a)

Finally, we can further simplify the expression: sin a * (18tg a + 8ctg a - 18sin a)

Please note that the expression cannot be simplified further without additional information or constraints on the variables involved.