If M is a square number, then the next immediate square number is :यदि M एक वर्ग संख्या है, तो उसकी अगली तत्काल वर्ग संख्या है :

1. AM + 4
2. BM + 2√M + 1
3. CM + 2√M − 1
4. DM² + 2M

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Correct answer: B. M + 2√M + 1

Explanation

Let M = k², so √M = k. The next square is (k + 1)² = k² + 2k + 1 = M + 2√M + 1.माना M = k², अतः √M = k। अगला वर्ग (k + 1)² = k² + 2k + 1 = M + 2√M + 1।