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