Question

Tg 2 a cos 2 a + ctg 2 a sin2 a

Answer 1

Вот как-то так. (То что в скобках, просто как факт, не переписывай!)

Answer 2

The expression you provided is: Tg(2a) = acos^2(a) + ctg^2(a)sin^2(a).

It seems like you have a trigonometric equation involving the tangent (tg) and cotangent (ctg) functions. However, I notice that you have an inconsistency in notation. In mathematics, the standard abbreviations for tangent and cotangent are "tan" and "cot," respectively, not "tg" and "ctg."

Assuming you meant to write the equation using standard notation, we can rewrite it as:

tan(2a) = acos^2(a) + cot^2(a)sin^2(a).

Please let me know if you have any specific question or if you would like me to provide any further assistance.