KCET2015MathematicsApplication of Derivatives
The remainder obtained when ( 1 !+2 !+3 !+ +11 ! ) is divided by ( 12 ) is
Options
- A( 09 )
- B( 08 )
- C( 7 )
- D( 06 )
Correct answer
A. ( 09 )
Step-by-step solution
Given that, 1 !+2 !+3 !+ s+11 ! Since 4 !=4 3 2 1 is divisible by 12 5 !=5 4 3 2 1 is divisible by 12 And so on. 11 !=11 10 9 8 7 6 5 4 3 2 1 is divisible by 12 So, reminder is 1 !+2 !+3 !=1+2+6=9