Question

The unit's digit of 12^222 +23^333 + 34^444 is
(a) 3
(b) 2
(C) 4
(d) 5​

Answer 1

Answer:

5

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Step-by-step explanation:

xfd1 is you yh5u5h5h5h5h your wishes to your future hjjhjhhhhhhhhh h5bthtbt

Answer 2

Answer:

3

Step-by-step explanation:

The unit digit of 12∧222.

12 ---->here the unit digit is 2

cyclicity of 2 is 4

divide 222 by 4. The remainder is 2

unit digit∧remainder=2∧2

The unit digit of 12∧222=4

The unit digit of 23∧333.

23---->here the unit digit is 3

cyclicity of 3 is 4

divide 333 by 4. The remainder is 1

unit digit∧remainder=3∧1

The unit digit of 23∧333=3

The unit digit of 34∧444.

34 here the unit digit is 4

cyclicity of 4 is 2

divide 444 by 2. The remainder is 0

when the remainder is 0 ( unit digit 2,4,6,8=6 & 3,7,9=0)

The unit digit of 34∧444=6

12∧222+23∧333+34∧444=4+3+6=13

The unit digit is 3