JEE Main 20209 JanuaryEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 9 January
- Shift
- Evening Shift
- Subject
- Mathematics
- Chapter
- Basics of Mathematics
JEE Main 2020 · 9 January · Evening Shift · Mathematics · Basics of Mathematics
If A = \ x ∈ R: |x| < 2\ and B = \ x ∈ R: |x - 2| ≥ 3\ ; then
If and then
Options
- A
- B
- C
- D
Correct answer
B.
Step-by-step solution
B = \left\{x: x \in ( - \infty, - 1 ] \cup [ 5, \left\infty\right)\right\}
A \cup B = \left\{x: x \in \left(- \infty, 2\right) \cup \left[5, \infty )\right\right\}
B - A = \left\{x: x \in \left(- \infty, \left- 2\right] \cup \right\left[5, \left\infty\right)\right\right\}