Question

Show that there is no value of n for which (2" x 5") ends in 5​

Answer 1

Step-by-step explanation:

(2"×5")

n=1 ; (2×5) = 10

n=2 ; (2×2×5×5) = 100

n=3 ; (2×2×2×5×5×5) = 1000

Answer 2

HEY MATE YOUR ANSWER IS HERE

We can write: (2n × 5n ) = (2 × 5) n = 10n For any value of n, we get 0 in the end. Thus, there is no value of n for which (2n × 5n ) ends in 5