\(यदि (U={x:x \in \mathbb{Z}, -10 \le x \le 10}) और (A={x:x \in U\) तथा \(|x|\le 3}), तो (n(A')) क्या है\)?

\(If (U={x:x \in \mathbb{Z}, -10 \le x \le 10}) and (A={x:x \in U\) and \(|x|\le 3}), what is (n(A'))\)?

Explanation opens after your attempt
Correct Answer

A. (14)

Step 1

Concept

There are (21) integers in (U), and \(A=\{-3,-2,-1,0,1,2,3\}\) has (7) elements. Thus (n(A')=21-7=14).

Step 2

Why this answer is correct

The correct answer is A. (14). There are (21) integers in (U), and \(A=\{-3,-2,-1,0,1,2,3\}\) has (7) elements. Thus (n(A')=21-7=14).

Step 3

Exam Tip

(U) में (21) पूर्णांक हैं और \(A=\{-3,-2,-1,0,1,2,3\}\) में (7) सदस्य हैं। अतः (n(A')=21-7=14) है।

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Mathematics Answer, Explanation and Revision Hints

\(यदि (U={x:x \in \mathbb{Z}, -10 \le x \le 10}) और (A={x:x \in U\) तथा |x|\le 3}), तो (n(A')) क्या है? \(/ If (U={x:x \in \mathbb{Z}, -10 \le x \le 10}) and (A={x:x \in U\) and \(|x|\le 3}), what is (n(A'))\)?

Correct Answer: A. (14). Explanation: (U) में (21) पूर्णांक हैं और \(A=\{-3,-2,-1,0,1,2,3\}\) में (7) सदस्य हैं। अतः (n(A')=21-7=14) है। / There are (21) integers in (U), and \(A=\{-3,-2,-1,0,1,2,3\}\) has (7) elements. Thus (n(A')=21-7=14).

Which concept should I revise for this Mathematics MCQ?

There are (21) integers in (U), and \(A=\{-3,-2,-1,0,1,2,3\}\) has (7) elements. Thus (n(A')=21-7=14).

What exam hint can help solve this Mathematics question?

(U) में (21) पूर्णांक हैं और \(A=\{-3,-2,-1,0,1,2,3\}\) में (7) सदस्य हैं। अतः (n(A')=21-7=14) है।