có phải là: tập hợp các số nguyên x để A= \(\dfrac{x-4}{x-1}\) là số nguyên ko bn???
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tap hop cac so nguyen x de bieu thuc a=l x+2l + l 1-xl dat gia tri nho nhat
1.goi A la tap hop cac so tu nhien co 2 chu so chia het cho 5 .Tong cac phan tu la:
2Gia tri nho nhat cua bieu thuc A=(x^2+2)^2 laTinh tong cac so nguyen x biet. -20 be hon x be hon 21
cho B la so tu nhien . biet B = ax -by ; a;b la cac so nguyen to khac nhau ;x,y la hai so tu nhien khac 0 . B2 co 15 uoc hoi B3 co bao nhieu uoc
1.tim tat ca cac so nguyen duong n sao cho tat ca cac so n+1,n+5,n+7,n+13,n+17,n+25,n+37 deu la cac so nguyen to
TRINH BAY DAY DU GIUP MINH NHA
1. tim cac so nguyen x, y biet
a.\(\dfrac{x}{2}\)bang\(\dfrac{-6}{3}\)
b. \(\dfrac{2}{x}\)bang \(\dfrac{y}{-3}\)
c. \(\dfrac{x}{y}\)bang\(\dfrac{-3}{11}\)
d. \(\dfrac{x}{y-1}\)bang\(\dfrac{5}{-19}\)
Cho p la snt lon hon 3. Biet 8p + 1 cung la snt . Hoi 4p + 1 la so nguyen to hay hop so.
tong hieu sau la so nguyen to hay hop so : 5.9.11-2.3.7
Tim cac so nguyen n sao cho:
A=\(\dfrac{n-3}{n+1}\)la so nguyen C=\(\dfrac{2n+3}{n-1}\)la so nguyen
B=\(\dfrac{2n-3}{n+2}\)la so nguyen D=\(\dfrac{-n+5}{n+2}\)la so nguyen