Question

QUESTION IN THE PIC. Solve full ​

Answer 1

Answer:

Step-by-step explanation: the unit digit in the final answer is the product of unit digit in two numbers i.e., 9 * 9 = 81... the units digit is 1

Answer 2

Answer:

1

Step-by-step explanation:

since last digit is asked, just square the last digit,

9×9=81 (in digit 799 unit digit is 9)

then the unit digit is 1

Hope it helps you...