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Subjects
Class 11MathematicsPermutations and CombinationsFactorial notationEasy
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What is the value of (6!+0!-1!)?

Answer and explanation

Correct answer: 720

Here, 6! = 6×5×4×3×2×1 = 720. Also, 0! = 1 and 1! = 1. Therefore, 6!+0!-1! = 720+1-1 = 720, so option C is correct. The value would be 721 if 1! were not subtracted. Exam tip: always remember that 0! = 1.

Related tags

Factorial NotationPermutations And CombinationsClass 11 MathematicsFactorial ValueBasic ArithmeticMathematicsClass 11 Mcq
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10 more MCQs
  1. 1What is the value of 5!?
  2. 2What is the value of 0!?
  3. 3What is the value of (1!+3!)?
  4. 4What is the simplified value of \(\frac{6!}{4!}\)?
  5. 5What is the value of (\frac{7!}{5!,2!})?
  6. 6Which form can represent (n!)?
  7. 7What is the value of (4!+2!)?
  8. 8What is the value of 8!/7!?
  9. 9How can (9\times8\times7) be written in factorial form?
  10. 10For a positive integer \(n\), which of the following statements gives the correct definition of \(n!\)?
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