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elementary algebra MCQ Questions for Class 11

elementary algebra se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with elementary algebra.

\(\frac{8!}{8}\) किसके बराबर है?

What is \(\frac{8!}{8}\) equal to?

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Correct Answer

B. \(7!\)

Explanation

Simple Explanation

क्योंकि \(8!=8\times7!\), इसलिए \(\frac{8!}{8}=\frac{8\times7!}{8}=7!\)। अतः सही विकल्प \(7!\) है। \(8!\) को उत्तर मानना गलत है, क्योंकि भाजक 8 से भाग देने पर एक गुणनखंड हट जाता है। परीक्षा टिप: \(n!=n\times(n-1)!\) का प्रयोग करके ऐसे प्रश्न तुरंत हल करें। / Since \(8!=8\times7!\), \(\frac{8!}{8}=\frac{8\times7!}{8}=7!\). Therefore, \(7!\) is correct. Choosing \(8!\) is incorrect because dividing by 8 removes the factor 8. Exam tip: use \(n!=n\times(n-1)!\) to simplify such expressions quickly.

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