CBSE Class 10 Answered
plzzz tell fast for tomorrow's boards
Asked by ashwinivg | 10 Mar, 2010, 08:44: PM
Expert Answer
6q+5
=3(2q+1)+2
=3p+2 for some pso first part is proved.
now we have to prove that ,
if a positive integer is of the form 3q+2 then it's not of the type 6p+5 for some integer p
3q+2=6[(q/2)-(1/2)]+5
but the quantity inside the bracket is not always an integer, hence the answer.
Answered by | 10 Mar, 2010, 09:55: PM
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