यदि (r=n) हो तो \(^{n}P_r\) के formula में denominator कौन-सा होगा?

If (r=n) what will be the denominator in the formula of \(^{n}P_r\)?

Explanation opens after your attempt
Correct Answer

B. (0!)

Step 1

Concept

(^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!). In exams take (0!) as (1).

Step 2

Why this answer is correct

The correct answer is B. (0!). (^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!). In exams take (0!) as (1).

Step 3

Exam Tip

(^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!) होता है। परीक्षा में (0!) को (1) मानें।

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यदि (r=n) हो तो \(^{n}P_r\) के formula में denominator कौन-सा होगा? / If (r=n) what will be the denominator in the formula of \(^{n}P_r\)?

Correct Answer: B. (0!). Explanation: (^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!) होता है। परीक्षा में (0!) को (1) मानें। / (^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!). In exams take (0!) as (1).

Which concept should I revise for this Mathematics MCQ?

(^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!). In exams take (0!) as (1).

What exam hint can help solve this Mathematics question?

(^{n}P_n=\frac{n!}{(n-n)!}=\frac{n!}{0!}=n!) होता है। परीक्षा में (0!) को (1) मानें।