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The last digit of is
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1
b
2
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7
d
9
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Correct option is A
As 1!+2!+3!+4!=33 and last digit of n!, forn≥5is 0, last digit of (1!+2!+⋯+2009!)500 is same as that of last digit of 3500 But 3500 =9250=(10-1)250 and last digit of (10-1)250 is 1.Similar Questions
Let (where, [ . ] denotes greatest integer function) is equal to
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