Let A={1,2,{3,4}, 5} . Which of following statements are incorrect and why ? {ø} subset A

English

Gujarati

Hindi

1.Set Theory

easy

Let $A=\{1,2,\{3,4\}, 5\} .$ Which of the following statements are incorrect and why ?

$\{\varnothing\} \subset A$

Option A

Option B

Option C

Option D

Solution

$A=\{1,2,\{3,4\}, 5\}$

The statement $\{\varnothing\} \subset A$ is incorrect because, $\varnothing$ is a subset of $A$ and it is not an element of $A.$

Standard 11

Mathematics

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