Question

Show that 12n cannot end with digit 0 or 5 for any natural number n.
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Answer 1

Answer:

Here, Number 12  

n

 where nϵN

Now 12  

n

=(2  

2

×3)  

n

 

Now, for 12  

n

 to end with 0, it should have 2 as well as 5 in its prime factors. Also to end with 5, of require at least a single multiple of 5 in its prime factors, so 12  

n

 cannot end with the digit

Step-by-step explanation:

Answer 2

hiii

Step-by-step explanation:

hiii how are you ...