Mathematics · Sets and Relations

JEE Main 2026 — 21 January, Evening Shift — Question 13

Let A={x:∣x2−10∣≤6}\mathrm{A}=\left\{\mathrm{x}:\left|\mathrm{x}^{2}-10\right| \leq 6\right\} and B={x:∣x−2∣>1}\mathrm{B}=\{\mathrm{x}:|\mathrm{x}-2|>1\}.

Then

  1. Option A:

    A∪B=(−∞,1]∪(2,∞)\mathrm{A} \cup \mathrm{B}=(-\infty, 1] \cup(2, \infty)

  2. Option B:

    A−B=[2,3)\mathrm{A}-\mathrm{B}=[2,3)

  3. Option C:

    A∩B=[−4,−2]∪[3,4]\mathrm{A} \cap \mathrm{B}=[-4,-2] \cup[3,4]

  4. Option D:

    B−A=(−∞,−4)∪(−2,1)∪(4,∞)\mathrm{B}-\mathrm{A}=(-\infty,-4) \cup(-2,1) \cup(4, \infty)

    Correct

Answer: D

Step-by-step solution

∣x2−10∣≤6\left|x^{2}-10\right| \leq 6

−6≤x2−10≤6-6 \leq \mathrm{x}^{2}-10 \leq 6

4≤x2≤164 \leq \mathrm{x}^{2} \leq 16

A=[−4,−2]∪[2,4]\mathrm{A}=[-4,-2] \cup[2,4]

∣x−2∣>1|x-2|>1

B=(−∞,1)∪(3,∞)\mathrm{B}=(-\infty, 1) \cup(3, \infty)

A∪B=(−∞,1)∪[2,∞)A \cup B=(-\infty, 1) \cup[2, \infty)

A∩B=[−4,−2]∪(3,4]A \cap B=[-4,-2] \cup(3,4]

A−B=[2,3]\mathrm{A}-\mathrm{B}=[2,3]

B−A=(−∞,−4)∪(−2,1)∪(4,∞)\mathrm{B}-\mathrm{A}=(-\infty,-4) \cup(-2,1) \cup(4, \infty)

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Subject
Mathematics
Chapter
Sets and Relations
Topic
Sets
Let A = \ x : x 2 -10 leq 6 \ and B =\ x : x -2 1\ . Then | JEE Main 2026 PYQ with Solution · DhiX AI