Question

tìm txđ

\(y=log_2\left(\dfrac{x-3}{x+1}\right)\)

 

Answer 1

tìm txđ

\(y=log_2\left(x^2-2x\right)^{ }\)

\(y=\left(\dfrac{x+2}{x-2}\right)^{-2021}\)

ac giúp em với ạ

 

Answer 2

ĐKXĐ: \(\dfrac{x-3}{x+1}>0\)

\(\Leftrightarrow\left[{}\begin{matrix}x>3\\x< -1\end{matrix}\right.\)