Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section A

Chapter

Relations and Functions

Question:

The solution of the inequality $\frac{x+1}{x+2}≥1$ is:

Options:

(-2, ∞)

(-∞, -2)

(2, ∞)

(-∞, -2]

Correct Answer:

(-∞, -2]

Explanation:

$∵\frac{x+1}{x+2}≥1$ ⇒ $\frac{(x+1)(x+2)^2}{x+2}≥(x+2)^2$

⇒ x2 + 3x + 2 ≥ x2 + 4x + 4

⇒ 3x - 4x ≥ 4 - 2

⇒ -x ≥ 2 ⇒ x ≤ - 2

(-∞, -2]