Sardor Bazarbaev
#kunsavoli
#9sinf
9-sinf o'quvchilari uchun 13-may
#kunsavoli
. Yechimlaringizni 17:00 ga qadar
@kunsavoli9sinf_bot
ga yuboring. Kun yakunida eng to'g'ri va eng chiroyli yechimni e'lon qilamiz.
👉
@bazarbaevs
Kanalga ulanish
2 comments
Shuhratjonova Dilnavozxon
May 13, 2020
4mn(m+n-1)=(m2+1)(n2+1)
4m2n+4m2-4mn=m2n2+m2+n2+1
4mn(m+n)=(mn+1)2+(m+n)2
m=1
m+n=2
(mn+1)2+(m+n)2-4mn(m+4)+4m2n2=4m2n2
(mn+1)2+(m+n-2mn)=4m2n2
mn=1
m+n=2
mn=-1
m+n=0
(1;1);(-1;1);(1;-1)
олия
May 13, 2020
Assalomu aleykum ustoz 8 sinf javoblari kelmayapatiku
4m2n+4m2-4mn=m2n2+m2+n2+1
4mn(m+n)=(mn+1)2+(m+n)2
m=1
m+n=2
(mn+1)2+(m+n)2-4mn(m+4)+4m2n2=4m2n2
(mn+1)2+(m+n-2mn)=4m2n2
mn=1
m+n=2
mn=-1
m+n=0
(1;1);(-1;1);(1;-1)