Question

For what value of n, 2ⁿ x 5ⁿ ends in 5.

Answer 1

Answer:

send full question it is not fully

Answer 2

None

Step-by-step explanation:

2^n * 5*n will always end with zero and not with 5 because every time we change n, it applies to both 2 and 5. 2*5 is 10 and all multiples of it will also be multiples of 10.  

Example: 2 * 5 = 10

2^2 * 5^2 = 4 * 25 = 100 (or) it can also be written as 10 * 10

2^3 * 5^3 = 8 * 125 = 1000 (or) it can also be written as 10 * 10 * 10

The series will proceed in the same way endlessly.

So there is no value of n that will end with 5.