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What is the value of (1!+2!+3!)?

Answer and explanation

Correct answer: 9

Using factorial values, 1! = 1, 2! = 2, and 3! = 6. Therefore, 1! + 2! + 3! = 1 + 2 + 6 = 9. Option 8 is incorrect because it is one less than the correct total after evaluating 3! correctly. Exam tip: evaluate each factorial separately before adding.

Related tags

Factorial NotationPermutations And CombinationsClass 11MathematicsElementary FactorialsClass 11 Mcq

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