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प्रश्न
Choose the correct alternative:
If `""^(("n" + 5))"P"_(("n" + 1)) = ((11("n" - 1))/2)^(("n" + 3))"P"_"n"`, then the value of n are
पर्याय
7 and 11
6 and 7
2 and 11
2 and 6
उत्तर
6 and 7
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