Các câu hỏi tương tự
cho a>=0;b>=1.chung minh: a+b+1>=2(√a+√(b-1)).dau bang xay ra khi nao?
giup em voi mn e can gap lam a
chung minh bat dang thuc x^4 + 5 > x^2 + 4x
Cho tam giac ABC bat ky , chung minh bat dang thuc 1/(BC+CA)^2 + 1/(BC+AB)^2 >= 1/(BC^2+CA.AB)
1/a+2 + 3/b+4 <= c+1/c+3 . Tim Qmin =(a+1)(b+1)(c+1) . Tim dau bang xay ra nhu the nao ???
chung minh bat dang thuc 2(a^4+1) + (b^2 +1)^2>=2(ab+1)^2
dien bat cu dau nao vao bai toan sau: 1 1 1 =6
cho x+16\(x-2)>10 dau bang xay ra khi
chung minh neu a,b,c=(0;1) thi co it nhat mot trong cac bat dang thuc sau day dung:a(1-b) <1/4 ; b(1-c)<1/4 ; c(1-a)<1/4
chung minh neu a,b,c=(0;1) thi co it nhat mot trong cac bat dang thuc sau day dung:a(1-b) <1/4 ; b(1-c)<1/4 ; c(1-a)<1/4