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CBSE Class 10 Answered

WILL 4 RAISE TO N IS A NATURAL NO. FOR ANY VALUE OF N EVER END WITH THE DIGIT 0
Asked by DHARVI A. BHATT | 21 Jul, 2010, 12:00: AM
answered-by-expert Expert Answer
Hello,
 
Nature of 4N  will depend on nature of "N".
If N is a natural number, then 4N will also be a natural number, and it will never end with 0.
because as we see, 
41 = 4
42 = 16
43 = 64
44 = 256
...
 
and so on. The last digit will always repeat as above. 
 
if "N" is an integer, then 4N is not going to be natural always.
For example:
4-1 = 0.25
 
Hence, we need to properly define the set of  values that N can take.
 
Regards,
Topperlearning
Answered by | 21 Jul, 2010, 10:56: PM
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