\(\frac{21!}{19!\times 2!} - \frac{20!}{18!\times 2!}\) का मान क्या है?

What is the value of \(\frac{21!}{19!\times 2!} - \frac{20!}{18!\times 2!}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (20)

Explanation

Simple Explanation

मान \(\frac{21\times20}{2}-\frac{20\times19}{2}\) है। यह (20) के बराबर है। / The value is \(\frac{21\times20}{2}-\frac{20\times19}{2}\). It equals (20).

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FAQs

Mathematics Answer, Explanation and Revision Hints

\(\frac{21!}{19!\times 2!} - \frac{20!}{18!\times 2!}\) का मान क्या है? / What is the value of \(\frac{21!}{19!\times 2!} - \frac{20!}{18!\times 2!}\)?

Correct Answer: C. (20). Explanation: मान \(\frac{21\times20}{2}-\frac{20\times19}{2}\) है। यह (20) के बराबर है। / The value is \(\frac{21\times20}{2}-\frac{20\times19}{2}\). It equals (20).