Question

prove that if n is a sum of two squares of non-negative integers then 2n is also a sum of 2 non-negative integers.

Answer 1

its easy i think

Answer 2

n=m^2+p^2
2n=2m^2+p^2=(m+p)^2+(p-m)^2

Answer 3

if m>p
then 2n=(m+P)^2+(m-p)^2

Answer 4

so saubhik what was ur rank in jee?

Answer 5

453
thnx for solving.. :)

Answer 6

which year?

Answer 7

this yr

Answer 8

wht stream?

Answer 9

engg

Answer 10

arre yaar which stream did u choose>?

Answer 11

counselling didnt start

Answer 12

this rank is in IITjee or WBjee??

Answer 13

i think wbjee

Answer 14

yes
I didnt get IIT

Answer 15

so are u going to shibpur(BESU)

Answer 16

would love to...but can I get anything in Jadavpur...i know my rank is poor...to get nything in Jadavpur...

Answer 17

u can get com sc. mechanical. civil, may be elec

Answer 18

which do u suggest is better ?

Answer 19

whats ur choice?

Answer 20

i think mech in jadavpur will be good? wat u think?

Answer 21

u can get. my assumption is ..

Answer 22

@saubhik i did ur another problem that says
m^2<n<(m+1)^2
did u check it??