Question

21 22
find the unit digit 114²¹+ 15²² +116²³
=​

Answer 1

Answer:

2

0+4+8

unit place digit= 2

Answer 2

Answer:

5

Step-by-step explanation:

unit's place when the last digit is 4 and power is odd is 4 therefore 114^21 has last digit 4

and when last digit is 5 and 6 the number raised to any ower will have the last digit as 5 and 6 respectively

•

• • 4 +6+5= 15

this implies that last digit is gonna be 5