a) ĐKXĐ: \(2x-3\ge0\Rightarrow x\ge\dfrac{3}{2}\)
b) ĐKXĐ: \(-\dfrac{2}{x}+5\ge0\Rightarrow x\ge\dfrac{2}{5}\)
c)ĐKXĐ: \(-3x-5>0\Rightarrow x>-\dfrac{5}{3}\)
d) ĐKXĐ: \(4x^2-4x+1\ge0\Rightarrow\left(2x-1\right)^2\ge0\) (luôn đúng)
a: ĐKXĐ: \(x\ge\dfrac{2}{3}\)
c: ĐKXĐ: \(x< -\dfrac{5}{3}\)
d: ĐKXĐ: \(x\in R\)
e: ĐKXĐ: \(x< -\dfrac{1}{2}\)
f: ĐKXĐ: \(x\ne-1\)
g: ĐKXĐ: \(x\in R\)
h: ĐKXĐ: \(x>-\dfrac{1}{2}\)
b: ĐKXĐ: \(\left\{{}\begin{matrix}x\le\dfrac{2}{5}\\x\ne0\end{matrix}\right.\)