giải hệ pt ik nèo!

H

hop.vp

tru 2 ve cho nhau
truc can thuc la ra roi
......................................................................
 
G

gjrl_9xlachj

với những bdt ntn _ la he doi xung loai 2
dau tien tru ve theo ve
nen giai bang phuong phap ham so
chuyen x sang 1 ve y sang 1 ve ta co g(x)=g(y)
ta thay x >=2 (dk) (ca y nua )
nen he luon co 1 nghiem duy nhat x=y
the vao phuong trinh ban dau roi giai
 
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