Question

2. If a number ends with 1 or 9, its square ends with
a. 1.
b. 9.
c. 8.
d. 10.​

Answer 1

Answer:

The answer is option ( a)

1

Answer 2

Answer:

1

Step-by-step explanation:

If it ends with 1, then

1^2 =1 (so it ends with one)

If the number ends with 9,

9^2 = 81 ( which again ends with 1)

So, the correct option is (a) 1.