यदि \(U={x:x \in \mathbb{Z},-10\le x\le 10}\) और \(A={x:x \in U,x^2\le 16}\), तो (n(A')) क्या है?
If \(U={x:x \in \mathbb{Z},-10\le x\le 10}\) and \(A={x:x \in U,x^2\le 16}\), what is (n(A'))?
Explanation opens after your attempt
Correct Answer
A. (12)
Concept
\(x^2\le 16\) gives \(-4\le x\le 4\), so (A) has (9) elements. Since (U) has (21) elements, (n(A')=12).
Why this answer is correct
The correct answer is A. (12). \(x^2\le 16\) gives \(-4\le x\le 4\), so (A) has (9) elements. Since (U) has (21) elements, (n(A')=12).
Exam Tip
\(x^2\le 16\) से \(-4\le x\le 4\) मिलता है, इसलिए (A) में (9) सदस्य हैं। (U) में (21) सदस्य हैं, अतः (n(A')=12) है।
Login to save your score, XP, coins and progress.