$10^x+89=y^2$
Xin lỗi về việc nhầm đề!
Bài viết đã được chỉnh sửa nội dung bởi Phạm Quang Toàn: 02-07-2011 - 16:02
#1
Đã gửi 30-06-2011 - 18:24
Zaraki
-
- Phó Quản lý Toán Cao cấp
-
- 4273 Bài viết
PQT
Giải phương trình nghiệm nguyên dương
$10^x+89=y^2$
Xin lỗi về việc nhầm đề!
$10^x+89=y^2$
Xin lỗi về việc nhầm đề!
Discovery is a child’s privilege. I mean the small child, the child who is not afraid to be wrong, to look silly, to not be serious, and to act differently from everyone else. He is also not afraid that the things he is interested in are in bad taste or turn out to be different from his expectations, from what they should be, or rather he is not afraid of what they actually are. He ignores the silent and flawless consensus that is part of the air we breathe – the consensus of all the people who are, or are reputed to be, reasonable.
Grothendieck, Récoltes et Semailles (“Crops and Seeds”).
#2
Đã gửi 30-06-2011 - 18:42
lipboy9x
-
- Thành viên
-
- 56 Bài viết
Hạ sĩ
Xét x chẵn thì VT chia 4 dư 2 => ko CP
Xét x lẻ thì VT tận cùng là 8 => ko Cp
=> Vô nghiệm
Xét x lẻ thì VT tận cùng là 8 => ko Cp
=> Vô nghiệm
#3
Đã gửi 02-07-2011 - 15:36
Zaraki
-
- Phó Quản lý Toán Cao cấp
-
- 4273 Bài viết
PQT
Bạn hãy thử với $x=3$ và $y=33$ xem.
Discovery is a child’s privilege. I mean the small child, the child who is not afraid to be wrong, to look silly, to not be serious, and to act differently from everyone else. He is also not afraid that the things he is interested in are in bad taste or turn out to be different from his expectations, from what they should be, or rather he is not afraid of what they actually are. He ignores the silent and flawless consensus that is part of the air we breathe – the consensus of all the people who are, or are reputed to be, reasonable.
Grothendieck, Récoltes et Semailles (“Crops and Seeds”).
1 người đang xem chủ đề
0 thành viên, 1 khách, 0 thành viên ẩn danh
