Math, asked by samir11prajapati11, 4 months ago

If the digit in unit's place of a number is 2 then what will be the digit at unit place in its cube 2, 4, 6, 8?​

Answers

Answered by Angeldudhani
6

THE CORRECT ANSWER IS 8

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Answered by pulakmath007
2

SOLUTION

TO CHOOSE THE CORRECT OPTION

If the digit in unit's place of a number is 2 then the digit at unit place in its cube will be 2, 4, 6, 8

EVALUATION

We know that a³ = a × a × a

Now

  • If last digit of a number is 0 then last three digit of cube of the number is 000

  • If last digit of a number is 1 then unit digit of cube of the number is 1

  • If last digit of a number is 2 then unit digit of cube of the number is 8

  • If last digit of a number is 3 then unit digit of cube of the number is 7

  • If last digit of a number is 4 then unit digit of cube of the number is 4

  • If last digit of a number is 5 then unit digit of cube of the number is 5

  • If last digit of a number is 6 then unit digit of cube of the number is 6

  • If last digit of a number is 7 then unit digit of cube of the number is 3

  • If last digit of a number is 8 then unit digit of cube of the number is 2

  • If last digit of a number is 9 then unit digit of cube of the number is 9

From above we can conclude that If last digit of a number is 2 then unit digit of cube of the number is 8

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