Show that any positive integer in the form of 4q ,4q+2,4q+4 where q is some integer.
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Answers
Correct Question :
Show that any positive even integer in the form of 4q ,4q+2,4q+4 where q is some integer.
Answer:
Let a be any positive integer. Then b = 4.
Now, by applying Euclid's Division lemma,
a=bq+r, where a is the dividend, b is the divisor, q is the quotient and r is the reminder.
So, when any number is divided by 4, there is some quotient q with a remainder (r) =0,1,2,3,4 etc.
Case I,
When r =0,
a =4q+0=4q=2(2q) (even)
Case II,
when r=1
a =4q+1=2(2q)+1 (odd)
Case III,
When r =2
a =4q+2 =2(2q)+2(even)
Case IV,
When r=3
a=4q+3 =2(2q)+3(odd)
Case V,
When r=4
a=4q+4=2(2q)+4 (even)
Thus, from Case II and IV are cancelled as value of a comes to be an odd integer.
Hence, any even positive integer is in the form of 4q, 4q+1,4q+3,4q+4..... So on, where q is any integer.
Step-by-step explanation:
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Show that any positive integer in the form of 4q ,4q+2,4q+4 where q is some integer.
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- Show that any positive integer
- where q is some integer
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Supposed
Let a be the positive integer.
And, b = 4 .
Euclid's division lemma,
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a = 4q + r ,
for some integer q and 0 ≤ r < 4 .
°•° possible values of r is 0, 1, 2, 3 .
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putting r = 0 .
Then a = 4q .
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putting r = 1 .
Then a = 4q + 1 .
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putting r = 2
Then a = 4q + 2 .
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putting r = 3 .
then a = 4q + 3 .
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We know a is positive integer,
so a is can't 4q + 1 , or 4q + 3
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∴ HENCE
the form of 4q ,4q+2,4q+4 where q is some integer.