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📐 Mathematics  ·  Linear Inequalities  ·  JEE

Solve for x: (1/(x-2)) > 0, where x is a real number not equal to 2.

Answer: x > 2.

  • A x > 2
  • B x < 2
  • C x > 0
  • D x < 0

Correct answer: A. x > 2

Explanation: Since the numerator is 1 (positive constant), the fraction 1/(x-2) is positive iff the denominator (x-2) is positive. So x-2 > 0, which gives x > 2. Check: x=3: 1/1=1>0 ✓; x=1: 1/(-1)=-1<0 ✗. Answer: x > 2

Number Line vs Half-Plane Representationx > 2 (open circle, hollow)2x ≤ 2 (closed circle, filled)shaded regionsatisfies the inequality2D inequality: dashed line = strict, shaded = solution side

One-variable inequalities use open (excluded) or closed (included) circles on a number line; two-variable inequalities use a dashed (strict) or solid (non-strict) boundary line, with the solution being the entire shaded half-plane on one side of it.

Concept context

Solving linear inequalities in one and two variables algebraically and graphically, and representing solutions on a number line or as a region in a plane.

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