allerya নিৰ্ণয় কৰক। I: a-ৰ বৰ্গ 16-ৰ সমান। II: a ঋণাত্মক।
Aকোনোটোৱেই নহয়, আনকি একেলগেও নহয়
Bদুয়োটা একেলগে প্ৰয়োজন
Cকেৱল I যথেষ্ট
Dকেৱল II যথেষ্ট
Answer & Solution
Correct answer: B. দুয়োটা একেলগে প্ৰয়োজন
বিবৃতি I-এ 4 বা -4 দিয়ে, আৰু বিবৃতি II-ৰ চিহ্নই -4 বাছনি কৰে।
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