If A - x - x is positive and x -0 then n A isA- 0B- 1C- 2D- 3

The correct option is A 0 Given, A ={x: x is positive and x lt; 0} Since all the positive numbers are greater than 0, there is no value which satisfies the ...

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Standard VI

Mathematics

Cardinality

If A = x : x ...

Question

If $A = {x : x i s p o s i t i v e a n d x < 0}$ then $n (A)$ is

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Solution

The correct option is A
0

Given,

$A = {x : x i s p o s i t i v e a n d x < 0}$

Since all the positive numbers are greater than 0, there is no value which satisfies the given condition.

$\Rightarrow$ Set A is an empty set

$\Rightarrow n (A) = 0$

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If A={x:x is positive and x < 0} then n(A) is

The correct option is A 0 Given, A={x:x is positive and x < 0} Since all the positive numbers are greater than 0, there is no value which satisfies the given condition. ⇒ Set A is an empty set ⇒n(A)=0

If $A = {x : x i s p o s i t i v e a n d x < 0}$ then $n (A)$ is

The correct option is A
0

Given,

$A = {x : x i s p o s i t i v e a n d x < 0}$

Since all the positive numbers are greater than 0, there is no value which satisfies the given condition.

$\Rightarrow$ Set A is an empty set

$\Rightarrow n (A) = 0$