यदि \(A={x\in \mathbb{Z}:-3<x<3}\) है, तो (n(A)) कितना है?
If \(A={x\in \mathbb{Z}:-3<x<3}\), what is (n(A))?
Explanation opens after your attempt
A. (5)
Concept
The integers strictly between (-3) and (3) are (-2,-1,0,1,2).
Why this answer is correct
There are (5) elements, so (n(A)=5).
Exam Tip
Do not include boundary values in strict inequalities. चरण 1: (-3) और (3) के बीच पूर्णांक (-2,-1,0,1,2) हैं। चरण 2: कुल (5) अवयव हैं, इसलिए (n(A)=5)। चरण 3: कड़ी असमानता में सीमा वाली संख्याएँ शामिल न करें।
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