If n(A)=6 and n(B)=4 and A and B are disjoint then what is n(A ∪ B)?
यदि n(A)=6 और n(B)=4 तथा A और B disjoint हैं तो n(A ∪ B) कितना होगा?
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Correct Answer
C. 10 / 10
ExplanationStep 1: Disjoint sets have no common element. Step 2: Therefore n(A ∪ B)=6+4=10. Step 3: When you see disjoint take intersection as zero.
Step 1: Disjoint sets में common element नहीं होता। Step 2: इसलिए n(A ∪ B)=6+4=10। Step 3: Disjoint word दिखे तो intersection zero मानें।