(8) अलग-अलग मोतियों की माला कितने तरीकों से बन सकती है यदि पलटना भी समान माना जाए?
In how many ways can a necklace be made with (8) distinct beads if flipping is also considered the same?
Explanation opens after your attempt
A. (2520)
Concept
In a necklace, both rotation and reflection are the same, so (\frac{(8-1)!}{2}=2520). In exams, reduce reflections for necklaces.
Why this answer is correct
The correct answer is A. (2520). In a necklace, both rotation and reflection are the same, so (\frac{(8-1)!}{2}=2520). In exams, reduce reflections for necklaces.
Exam Tip
माला में घुमाव और पलटना दोनों समान हैं, इसलिए (\frac{(8-1)!}{2}=2520)। परीक्षा में necklace में reflection भी घटाएं।
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