Download App

Sets — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSSets1 Mark
Question
Let A = {1, 2, {3, 4 }, 5}. Is the statement {$\phi$} $\subset$ A incorrect and why?
✓

Answer

{$\phi$} is the set containing the null set.
$\{\phi\} \subset A$ is only possible if $\phi$ is in set A but it is not there. Therefore,  the statement is incorrect.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Sets→Sets — all question types→MATHS STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

For the following statements, determine whether an inclusive "OR" or exclusive "OR" is used. Give reasons for your answer.
A lady gives birth to a baby boy or a baby girl.
→
If A = {1, 2, 3, 4, 5}, B = {4, 5, 6, 7, 8}, C = {7, 8, 9, 10, 11}, and D = {10, 11, 12, 13, 14}. Find:
$\text{B}\cup\text{D}$
→
Write down the contrapositive of the following statement:
If n is a natural number, then n is an integer.
→
Find the derivative of $\frac { x + \cos x } { \tan x }.$
→
Three coins are tossed once. Find the probability of getting: no head
→
Find the equation of the circle with:
 Centre (a, a) and radius $\sqrt{2}$ a.
→
In a $\triangle\text{ABC},$ if b = 20, c = 21 and $\sin\text{A}=\frac{3}{5},$ find a.
→
Two dice are thrown Describe the sample space of this experiment.
→
Write down the converse of following statement:
If the sum of squares of two sides of a triangle is equal to the square of third side of a triangle, then the triangle is right angled.
→
Find the equation of the circle with:
Centre (a, b) and radius $\sqrt{\text{a}^2+\text{b}^2}$
→