A=\(\frac{2n-7}{n-7}\)
a) TIm n \(\in\)Z, de A la so nguyen
b)__________________ so lon nhat
cho x,y,z la cac so huu ti duong thoa man x+1/yz y +1/xz z+1/xy la cac so nguyen tim gia tri lon nhat cua bieu thuc A=x+y^2+z^3
Tim STN n de phan so 7n-8/2n-3 co gia tri lon nhat
Cho M :x-2/x+3
a, Tim x € Z de M co gia tri nguyen
b, Tim x € Z de M la gia tri nho nhat . Tim gia tri nho nhat do
Goi A la so huu ti am nho nhat viet bang ba chu so 1 , B la so huu ti am lon nhat viet bang ba chu so 1.Tim ti so cua A va B
Cho so nguyen to n co 2 chu so hang chuc la x, hang don vi la y. Biet M=n/x+y. Tim n de M=2. Tim n de M dat gia tri nho nhat
tim so tu nhien n de phan so 7n-8/2n-3 co gia tri lon nhat
Giup mk vs mai mk can rui
tim \(n\in N\)de\(\frac{7n-8}{2n-3}\)co gia tri lon nhat
Tim STN n lon nhat sao cho so 2015 bang tong cua n so a1,a2,a3,...,an trong do tat ca cac so a1,a2,a3,...,an deu la hop so
