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Class 12 Tuition > Learn Class XI-XII Tuition (PUC) > Evaluate: 5! - 2!?
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Evaluate: 5! - 2!?

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Learn Class XI-XII Tuition (PUC) +2 Mathematics Permutations

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118.
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Computer Wizard

=(5*4*3*2*1)-(2*1) =(120)-(2) =118
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118.
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An Experienced Trainer

118.
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Math Teacher

5! =120, 2! =2. 5! - 2! =118.
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Physics Faculty

n!=n(n-1)(n-2).....(2)(1); So, 5!-2!=5*4*3*2*1-2*1=120-2=118.
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