Question

Find the unit digit in 74^99​

Answer 1

Answer:

6 is the answer

Step-by-step explanation:

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Answer 2

Concept:

The digit in a number's place one is known as the units digit. i.e. It is the digit that comes last in the number. For instance, the unit digit for 277 is 7 whereas for 75 it is 5.

Given:

We have given a number 74^99​

Find:

We have to find the unit digit in 74^99​

Solution:

Given number= 74^99

Unit place = 4

For digit 4 we have a rule that 4 to the power any odd number will get resultant with the unit place as 4. And 4 to the power any even number will get resultant with the unit place as 6.

So, in the given number= 74^99

99 is an odd number so 4 to the power odd number will get resultant with the unit placed as 4.

Hence, the unit digit in 74^99​ is 4.

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