यदि \(Y=\{2,4,6,8,10\}\) है, तो (n(Y)) का मान क्या है?
If \(Y=\{2,4,6,8,10\}\), what is the value of (n(Y))?
Explanation opens after your attempt
A. (5)
Concept
(n(Y)) tells the number of elements.
Why this answer is correct
(Y) has five distinct elements (2,4,6,8,10).
Exam Tip
For (n(Y)), count the elements and do not add them. चरण 1: (n(Y)) अवयवों की संख्या बताता है। चरण 2: (Y) में पाँच अलग अवयव (2,4,6,8,10) हैं। चरण 3: (n(Y)) में अवयव गिनें, उनका योग नहीं करें।
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