alleryকোন প্রতীকটি সেট A এবং B-এর ছেদ (ইন্টারসেকশন) নির্দেশ করে?
AA ⊂ B
BA ∩ B
CA ∪ B
DA − B
Answer & Solution
Correct answer: B. A ∩ B
ক্যাপ প্রতীকটি A এবং B-এর সাধারণ উপাদানগুলিকে নির্দেশ করে, অন্যদিকে কাপ প্রতীকটি ইউনিয়ন নির্দেশ করে।
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