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khi con 123

khi con 123

Đăng ký: 27-11-2017
Offline Đăng nhập: 20-02-2018 - 20:21
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cho a,b,c la cac so khong am va khong lon hon 2 thoa man a+b+c=3.CM a^2+b^2+c^2<=5

20-02-2018 - 13:30

cho a,b,c la cac so khong am va khong lon hon 2 thoa man a+b+c=3.CM a^2+b^2+c^2<=5


Ton tai hay khong 5 so nguyen ma tong tung cap trong so do lap thanh 10 so nguyen lien...

15-02-2018 - 14:37

Ton tai hay khong 5 so nguyen ma tong tung cap trong so do lap thanh 10 so nguyen lien tiep 


goc B + goc C=105.CHo AB+ can 2 AC=2BC

13-02-2018 - 07:50

Cho tam giac ABC co goc B + goc C=105.CHo AB+ can 2 AC=2BC.inh goc B va C


f(x) chia cho x+2 du 10, f(x) chia cho x-2 du 24, f(x) chia cho x^2-4 duoc thuong la -5...

12-02-2018 - 10:12

Tim da thuc f(x() biet f(x) chia cho x+2 du 10, f(x) chia cho x-2 du 24, f(x) chia cho x^2-4 duoc thuong la -5x va con du


a+2/b=b+2/c=c+2/a

29-12-2017 - 20:28

Cho a+2/b=b+2/c=c+2/a.Tinh abc