Các câu hỏi tương tự
chung minh rang trong hai so duong
a, so nao lon hon thi co binh phuong lon hon
b, so nao co binh phuong lon hon thi so do lon hon
Cho
A=6,62^2+5,4.3,38+1,22.3,38/20,1^2-13^2+33,1.12,9
B=(1,09-0,29).1,25/(18,9-16,65).8/9
Hoi A va B so nao lon hon va lon hon bao nhieu lan ?
Cmr: /a+b/ lon hon hoac bang /a/+/b/
cho a,b,c la do dai 3 canh tam giac. cmr: can 3(a-c)(b-a)(c-b)/a.b.c lon hon bang 1/2
Cho tam giac ABC CMR neu ha=3,hb=4,hc=5 thi a mu 2 lon hon b mu 2 cong c mu 2
goi a,b,c la cac canh cua 1 tam giac co 3 duong cao tuong ung la ha,hb,hc. cmr (a+b+c)^2/ha^2+hb^2+hc^2 lon hon hoac bang 4
CM 2a+3b=n (voi a,b,n thuoc N ;n lon hon hoac bang 2)
cho tam giac ABC co goc A lon hon 90 độ. Chứng minh AB2+AC2<BC2
cho tam giac ABC, goc ABC lon hon 60 do. cmr AB+AC<=2BC
2 LIKE CHO ai giai dc dau tien