यदि (n=10) और (r=4) हो तो \(^{n}P_r\) का last factor (n-r+1) कितना होगा?

If (n=10) and (r=4) what is the last factor (n-r+1) of \(^{n}P_r\)?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

(10-4+1=7). In exams do not forget (+1) while finding the last factor.

Step 2

Why this answer is correct

The correct answer is C. (7). (10-4+1=7). In exams do not forget (+1) while finding the last factor.

Step 3

Exam Tip

(10-4+1=7) होता है। परीक्षा में last factor निकालते समय (+1) भूलें नहीं।

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Mathematics Answer, Explanation and Revision Hints

यदि (n=10) और (r=4) हो तो \(^{n}P_r\) का last factor (n-r+1) कितना होगा? / If (n=10) and (r=4) what is the last factor (n-r+1) of \(^{n}P_r\)?

Correct Answer: C. (7). Explanation: (10-4+1=7) होता है। परीक्षा में last factor निकालते समय (+1) भूलें नहीं। / (10-4+1=7). In exams do not forget (+1) while finding the last factor.

Which concept should I revise for this Mathematics MCQ?

(10-4+1=7). In exams do not forget (+1) while finding the last factor.

What exam hint can help solve this Mathematics question?

(10-4+1=7) होता है। परीक्षा में last factor निकालते समय (+1) भूलें नहीं।