JEE MATHEMATICS MCQ: SET THEORY

1 Easy

1 of 1

Analyzing +4 | -1

Let

A = \left\{ {x \in R:|x + 1| < 2} \right\}{\text{ }}\,\,{\text{and }}\,\,\,B = \left\{ {x \in R:|x - 1| \geqslant 2} \right\}.

Then which one of the following statements is NOT true?

View answer and explanation

Correct option: B

B - A = R - ( - 3,1)

The statement

B - A = R - ( - 3,1)

is NOT true because

B - A

should be

R - (-3, 3)

. Therefore, option B is the correct answer.

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2 a_1 a_2 a_3 \ldots . . a_{2006}

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S

a N=\{a n: n \in N: b N=\{n b: n \in N\}

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b, c

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\}

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A-B

F(n)

n

[\mathrm{F}(20) \cap \mathrm{F}(16)] \subseteq \mathrm{F}(\mathrm{y})

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A, 20 \%

10 \%

C

A

C

4 \%

A

C

2 \%

A