1.

12show that there is no value of n for which(2^n*5^n)ends in 5 ?​

Answer»

Step-by-step explanation:

for n = 0 , number will be one

for n belongs to NATURAL number , ending DIGIT will be zero

since 2^n × 5^n = 10^n

for any other value of n number will be in decimals

so for any value of n number cannot end with 5.



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