Vừa thi xong
Đề chuyên tin chuyên Lam Sơn
Started By nhivanle, 06-06-2016 - 13:10
#1
Posted 06-06-2016 - 13:10
- Minhmai145 and toanthcs2302 like this
Nothing is impossible the word itself says i'm possible
Audrey Hepburn
#2
Posted 06-06-2016 - 14:57
Vừa thi xong
chưa có đề chuyên toán hả bạn
#3
Posted 06-06-2016 - 15:06
Câu 5:
Từ giả thuyết, ta có: $\frac{6}{a}+\frac{2}{b}+\frac{2}{c}=7$
Ta có: $M=\frac{4}{\frac{2}{a}+\frac{1}{b}}+\frac{4}{\frac{1}{b}+\frac{1}{c}}+\frac{9}{\frac{1}{c}+\frac{4}{a}}$
$M\geq 2016$
Dấu bằng xảy ra khi: a=2; b=c=1
$$\mathbf{\text{Every saint has a past, and every sinner has a future}}.$$
#4
Posted 06-06-2016 - 15:51
1 user(s) are reading this topic
0 members, 1 guests, 0 anonymous users