Tính giới hạn các hàm số sau
câu 5, 6 & 10 th nhé
----- Nội dung ảnh -----
Luyện tập
1) Tính lim \((2x^2 + 3x - 4)\) khi \(x \to -1\)
2) lim \(\frac{5x - x^2}{x^2 - 25}\) khi \(x \to 5\)
3) lim \(\frac{x^2 - 1}{-x^2 - 5x + 6}\) khi \(x \to 1\)
4) lim \(\frac{2 - \sqrt{x + 2}}{x^2 - 3x + 2}\) khi \(x \to 2\)
5) lim \(\frac{\sqrt{x + 1} + \sqrt{x + 4} - 3}{x}\) khi \(x \to 0\)
6) lim \(\frac{\sqrt{x + 5} - \sqrt{2x + 1}}{x - 4}\) khi \(x \to 4\)
7) lim \(\frac{\sqrt{x + 2} - 3}{x - 7}\) khi \(x \to 7\)
8) lim \(\frac{x}{\sqrt{1 - x} - 1}\) khi \(x \to 0\)
9) lim \(\frac{\sqrt{x + 4} - 3}{x^2 - 25}\) khi \(x \to 5\)
10) lim \(\frac{x^3 - \sqrt{3x - 2}}{x - 1}\) khi \(x \to 1\)
11) lim \(\frac{x + 1}{\sqrt{6x^2 + 3x}}\) khi \(x \to -1\)
----- Nội dung ảnh -----
Luyện tập
1) Tính lim \((2x^2 + 3x - 4)\) khi \(x \to -1\)
2) lim \(\frac{5x - x^2}{x^2 - 25}\) khi \(x \to 5\)
3) lim \(\frac{x^2 - 1}{-x^2 - 5x + 6}\) khi \(x \to 1\)
4) lim \(\frac{2 - \sqrt{x + 2}}{x^2 - 3x + 2}\) khi \(x \to 2\)
5) lim \(\frac{\sqrt{x + 1} + \sqrt{x + 4} - 3}{x}\) khi \(x \to 0\)
6) lim \(\frac{\sqrt{x + 5} - \sqrt{2x + 1}}{x - 4}\) khi \(x \to 4\)
7) lim \(\frac{\sqrt{x + 2} - 3}{x - 7}\) khi \(x \to 7\)
8) lim \(\frac{x}{\sqrt{1 - x} - 1}\) khi \(x \to 0\)
9) lim \(\frac{\sqrt{x + 4} - 3}{x^2 - 25}\) khi \(x \to 5\)
10) lim \(\frac{x^3 - \sqrt{3x - 2}}{x - 1}\) khi \(x \to 1\)
11) lim \(\frac{x + 1}{\sqrt{6x^2 + 3x}}\) khi \(x \to -1\)