(8) distinct beads को circular necklace में arrange करते समय rotations और reflections दोनों same हों, तो count क्या होगा?
If (8) distinct beads are arranged in a circular necklace where both rotations and reflections are the same, what is the count?
Explanation opens after your attempt
B. \(\frac{7!}{2}\)
Concept
Removing circular rotations gives (7!), and divide by (2) when reflection is the same. In exams read the mirror-image condition in necklace problems.
Why this answer is correct
The correct answer is B. \(\frac{7!}{2}\). Removing circular rotations gives (7!), and divide by (2) when reflection is the same. In exams read the mirror-image condition in necklace problems.
Exam Tip
Circular rotations हटाने से (7!) आता है और reflection same होने पर (2) से divide करते हैं। परीक्षा में necklace में mirror image condition पढ़ें।
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