Tìm kiếm
Nam
cho tam giac abc can tai a,goc a tu duong cao ad truc tam h
tinh ad biet ah=14,hb=hc=30cm
dung he thuc luong ho minh.THS!!!
KingClashOfClansVietNam
CAC BAI TOAN KHO THCS
14-07-2019 - 10:32
tren bang nguoi ta viet cac so tu nhien lien tiep tu 1 den 100 sau do thuc hien tro choi nhu sau:moi lan xoa 2 so bat ki va viet mot so moi bang tong lap phuong 2 so da xoa.thuc hien tro choi den khi con 1 so tren bang.hoi so do co the la 123^1819 ko?
ff
Tìm min $\frac{1}{a^2+b^2}+\frac{1}{a...
14-07-2019 - 09:38
Cho $a,b>0: a+b \geq 1.$ Tìm min $\frac{1}{a^2+b^2}+\frac{1}{ab}+\frac{1}{4ab}$
giai ki ho minh nha
thanhk cac ban nhiu
