Question

3+ctga* если sina -1/3

Answer 1

Ответ:

3+ctga=3+2√2/3÷(-1/3)=3-2√2

Answer 2

It seems there is a typo in your expression. I believe you intended to write "3 + ctg(a)" instead of "3 + ctga*". Additionally, you provided the value of "sina" as -1/3, but there is no information given about the value of "ctg(a)".

To simplify the expression and calculate the result, we need the value of "ctg(a)". The value of "sina" being -1/3 alone is not sufficient. Please provide the value of "ctg(a)" or any additional information so that I can assist you further.