Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
99 Percentile Qs Bank for JEE MainMathematicsBasics of Mathematics

Number of integral solutions of inequality 1 10 log x - 3 ⁡ x 2 - 4 x + 3 ≥ 1 are

Options

  1. A0
  2. B1
  3. C2
  4. D3

Correct answer

A. 0

Step-by-step solution

1 10 log x - 3 ⁡ x 2 - 4 x + 3 ≥ 1 10 0 ⇒ log x - 3 ⁡ x 2 - 4 x + 3 ≤ 0 (base is less than 1) Case - I : x - 3 > 1 and 0 < x 2 - 4 x + 3 ≤ 1 ⇒ x > 4 and ( x - 1 ) ( x - 3 ) > 0 and x 2 - 4 x + 2 ≤ 0 ⇒ x > 4 and x 2 - 4 x + 2 ≤ 0 ⇒ x > 4 and 2 - 2 ≤ x ≤ 2 + 2 ∴ not possible ∴ No Solution Case - II : 0 < x - 3 < 1 and x 2 - 4 x + 3 ≥ 1 ⇒ 3 < x < 4 and x ≤ 2 - 2 x ≥ 2 + 2 ⇒ 2 + 2 ≤ x < 4 ⇒ there is no integral value of x.

Practice Basics of Mathematics on Quantrex Academy →

More from Basics of Mathematics

All Basics of Mathematics questions Full Basics of Mathematics list All 99 Percentile Qs Bank for JEE Main PYQs