Question

what is the unit place digit of 9^9​

Answer 1

Step-by-step explanation:

9^9 = 9 × 9 × 9 × 9 × 9 × 9 × 9 × 9 × 9 = 387420489

The digit at units place in this number is 9.

Answer) 9

Answer 2

Answer:

The unit's digit of 9 for odd powers is 9 and for even powers is 1.

Here power is odd i. e 9

So unit's digit is 9