K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

18 tháng 7 2016

Vif 36x2+21 chia hết cho 3 vì 36 chia hết cho 3 và 21 chia hết cho 3

nhưng 36x^2+21 không chia hết cho 9 vì 36 chia hết cho 9 mà 21 không chia hết cho 9 

nên không phải là số chính phương => x;y thuộc rỗng

17 tháng 7 2016

bộ kho lắm hả 

17 tháng 7 2016

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

câu hỏi cho các bạn nèslenderman có thật không hãy chứng minh điều đóký tên: the oceankhông đăng nội dung ai đăng thì...
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

3
13 tháng 1 2019

Toàn đăng mấy cái linh tinh

Report luôn

13 tháng 1 2019

WTF  HỎI ÉO GÌ ĐẤY VỪA RA VIỆN TÂM THẦN À ĐỒ ĐIÊN VÀ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................T............................................................................................................................................................................................................................H...........................................................................................................Ầ..............................................................................................................................................................................................................................................................N............................................................................................................................................................................................................................................................................................................................................................KINH

18 tháng 12 2018

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 !

18 tháng 12 2018

Trả lời:

1 + 1 = 2

Chúc bạn học tốt:

4 tháng 9 2015

bạn thử đăng lại đi 

9 tháng 8 2021

mình cũng vậy à

13 tháng 8 2017

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 !!!

14 tháng 8 2017

mk là gì vậy ? *_*

Buồn như con chuồn chuồn :))

#NamN

13 tháng 2 2020

Lần sau đừng đăng linh tinh nữa nhé