Math, asked by pawan474, 1 year ago

show that the square of any positive integer can't be form 5q + 2 or 5q +3 for any integer q

Answers

Answered by parasharsarthapel3yz
1

a=bq+r , b>r

b=5

r=0,1,2,3,4

a=5q+0

squaring both side

a^2=(5q)^2

a^2= 25 q^2

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