किस identity से \(^{13}C_{10}\) को जल्दी \(^{13}C_3\) लिखा जा सकता है?

Which identity quickly converts \(^{13}C_{10}\) into \(^{13}C_3\)?

Explanation opens after your attempt
Correct Answer

B. \(^{n}C_r=^{n}C_{n-r}\)

Step 1

Concept

Choosing (10) is the same as leaving (3). In exams reduce a large lower index using its complement.

Step 2

Why this answer is correct

The correct answer is B. \(^{n}C_r=^{n}C_{n-r}\). Choosing (10) is the same as leaving (3). In exams reduce a large lower index using its complement.

Step 3

Exam Tip

(10) चुनना (3) छोड़ने जैसा है। परीक्षा में बड़े lower index को complement से छोटा करें।

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Mathematics Answer, Explanation and Revision Hints

किस identity से \(^{13}C_{10}\) को जल्दी \(^{13}C_3\) लिखा जा सकता है? / Which identity quickly converts \(^{13}C_{10}\) into \(^{13}C_3\)?

Correct Answer: B. \(^{n}C_r=^{n}C_{n-r}\). Explanation: (10) चुनना (3) छोड़ने जैसा है। परीक्षा में बड़े lower index को complement से छोटा करें। / Choosing (10) is the same as leaving (3). In exams reduce a large lower index using its complement.

Which concept should I revise for this Mathematics MCQ?

Choosing (10) is the same as leaving (3). In exams reduce a large lower index using its complement.

What exam hint can help solve this Mathematics question?

(10) चुनना (3) छोड़ने जैसा है। परीक्षा में बड़े lower index को complement से छोटा करें।