Các câu hỏi tương tự
biet x,y,m,n la cac so nguyen thoa man: x+y=m+n. chung minh S=x^2+y^2+m^2+n^2 luon =bang cac binh phuong cua 3 so nguyen
cho so nguyen to p va cac so duong x,y thoa man 4x^2-3xy-y^2-p(3x+2y)=2p^2 CHUNG MINH RANG 5x-1 la so chinh phuong
a/ Hieu cac binh phuong cua 2 so tu nhien chan lientiep la 8 . tim hai so ay
b/ tong cac binh phuong cua 2 so tu nhien le lien tiep laf 2594. tim hai so ay
c/ chung minh rang so 3599 duoc viet duoi dang tich cua 2 so tu nhien khac 1
Cho x,y,z la cac so nguyen duong thoa man 1/x + 1/y + 1/z = 2015.
Tim GTLN cua bieu thuc P=x+y/x^2+y^2 + y+z/y^2+z^2 + z+x/z^2+x^2
tim cac so tu nhien x sao cho 4x^4+1 la so nguyen to
Bai 10. Chung minh rang:
a) Neu p va p2+8 la cac so nguyen to thi \(p^2+2\)cung la so nguyen to
b) Neu p va 8.p2+1 la cac so nguyen to thi 2.p+1 cung la so nguyen to
Lam nhanh cho minh nha, minh dang can lam gap
1 . tong binh phuong tat ca cac nghiem cua phuong trinh : x4(x-1)+(x-1)x3=0
2.neu da thuc 2m3-m+n co 2 nhan tu la : x+2 va x-1 thi gia tri cua 2m+3n la
3.tong x; y thoa man (x-2015)2+(y-2014)4>hoac bang 0 la ?
a) Cho vidu ve 1 don thuc ,moi da thuc nhung k phai la don thuc 2 don thuc dong dang voi nhau,da thuc 1 bien
b) Hay viet 1 don thuc dong dang voi don thuc xy\(^3\) sao cho tai x=-1 y=2 gia tri cua don thuc do la so nguyen duong nho hon 10
CAC BAN GIUP MINH NHA MINH GAP LAM
1.so nghiem cua da thuc x4-x3+x2x la
2.viet so 1993-199 duoi dang tich cua 3 so tu nhien lien tiep so be nhat trong 3 so tu nhien do la
3.tap hop cac gia tri cua x\(\ne\)0 thoa man x3-4x=0 la S(...)