các bạn ít đăng quá , mk đăng nè :
Chứng tỏ không có x;y thuộc Z thỏa :
36x^2+21=(y+1)^2
vài dòng thui
Những câu hỏi liên quan
thấy mấy pạn ít đăng quá mk đăng 1 bài cho vui
Cho a;b;c thuộc N*
a^2+b^2=c^2
Chứng tỏ : a.b.c chia hết cho 60
dễ lắm các bạn ơi
Nếu
\(a^2;b^2;c^2\) đếu không chia hết cho 3
=> Thay vào đề thì vô lý
=>Trong số \(a^2;b^2;c^2\) có 1 số chia hết cho 3
Xét t2
=> Trong số \(a^2;b^2;c^2\) có 1 số chia hết cho 4
Đúng 0
Bình luận (1)
nếu các bạn không biết z để mk giải cho
Vì a^2 và b^2 là SCP nên chia 3 dư 0 hoặc 1 => phải có 1 số chia hết cho 3 =>a.b.c chia hết cho 3
Nếu a^2 và b^2 không chia hết cho 3 => chia 3 dư 2 => c^2 chia 3 dư 2 ( vô lí )
Chứng tỏ cho 4 tương tự như cho 3
Nếu a^2 hoặc b^2 chia hết cho 5 => a.b.c chia hết cho 5
Nếu a^2 và b^2 không chia hết cho 5 => chia 5 dư 2;3
SCP chia 5 chỉ dư 0;1 và 4
mà (3;4;5) = 1 =>a.b.c chia hết cho 60
lưu ý : SCP là số chính phương
Đúng 0
Bình luận (0)
câu hỏi cho các bạn nèslenderman có thật không hãy chứng minh điều đóký tên: the oceankhông đăng nội dung ai đăng thì sẽ...............................................................................................................................................................................................................................................................................................................................................................................................
Đọc tiếp
câu hỏi cho các bạn nè
slenderman có thật không
hãy chứng minh điều đó
ký tên: the ocean
không đăng nội dung ai đăng thì sẽ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................chết
Toàn đăng mấy cái linh tinh
Report luôn
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WTF HỎI ÉO GÌ ĐẤY VỪA RA VIỆN TÂM THẦN À ĐỒ ĐIÊN VÀ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................T............................................................................................................................................................................................................................H...........................................................................................................Ầ..............................................................................................................................................................................................................................................................N............................................................................................................................................................................................................................................................................................................................................................KINH
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Vừa đổi avatar nè
1 + 1 =..
Mong các bạn không đăng nội quy
Nếu các bạn muốn có những bức ảnh như vậy các bạn nhắn tin TK và MK cho mình.Mình hứa không hack
LỜI HỨA DANH DỰ !
Bài làm :
1 + 1 = 2
Avartar của bạn rất đẹp ! Thả tim ! Muazzz ! À ! Mà mình cũng đã biết cách đổi rồi ! Cảm ơn bạn vì đã có lòng tốt !
Nhưng lần sau bạn nên nhớ đừng đăng những câu hỏi linh tinh lên diễn đàn nữa nha !
Chúc bạn học tốt !
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1 + 1 = 2
Nội qui tham gia "Giúp tôi giải toán"
1. Không đưa câu hỏi linh tinh lên diễn đàn, chỉ đưa các bài mà mình không giải được hoặc các câu hỏi hay lên diễn đàn;
2. Không trả lời linh tinh, không phù hợp với nội dung câu hỏi trên diễn đàn.
3. Không "Đúng" vào các câu trả lời linh tinh nhằm gian lận điểm hỏi đáp.
Các bạn vi phạm 3 điều trên sẽ bị giáo viên của Online Math trừ hết điểm hỏi đáp, có thể bị khóa tài khoản hoặc bị cấm vĩnh viễn không đăng nhập vào trang web.
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các bạn kb với mk đi mk buồn quá ( mk biết la sai các bạn đừng đăng nội quy nha )
Đề: Bạn hãy chứng minh bđt Cô-si cho 2 số bằng hình học
Dạo này trên OLM thấy ít ai đăng bài tập hình quá. Hôm nay mình có bài hình khá dễ nhưng thấy hay hay mong các bạn đọc rồi tìm lời giải nha. Ai có bài hình nào hay hay cứ đăng lên để mọi người giải chung với nha
Lớp 6A có 51 bạn trong đó 30 bạn đăng kí học Toán, 25 bạn đăng kí học Văn
a, Nếu 10 bạn không đăng kí môn nào thì có bao nhiêu bạn đăng kí cả 2 môn
b, Nhiều nhất thì có bap nhiêu bạn đăng kí cả 2 môn
c, Ít nhất bao nhiêu bạn đăng kí cả 2 môn
Làm cả bài ra nhoa~ Cam sành mi tành
chán quá các bạn ơi ad cứ xóa bài đăng của mk thui....
mình cũng vậy à
Nè các bạn cho mình mượn mk của bạn nha, mình đang sưu tầm 10 loại mk khác nhau, mình ko cần tên đăng nhập đâu nên các bạn khỏi phải lo mình vào được ních bạn nha. Cho mình mk của ních các bạn đang dùng nha, thank you very much !!!
20 bạn cho mình ních đầu tiên thì mỗi ngày mình sẽ vào thống kê hỏi đáp của các bạn và mỗi ngày các bạn sẽ được 3 điểm nha !!!
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Xem thêm câu trả lời
cho đăng câu hỏi linh tinh xíu nha là;có ai kết bạn ko buồn quá nè.
hihi.
Buồn như con chuồn chuồn :))
#NamN
Lần sau đừng đăng linh tinh nữa nhé
ừ,đúng đấy.
Xem thêm câu trả lời