Violympic toán 7
Các câu hỏi tương tự
tap hop cac so nguyen a de a^2+a+3/a+1 la so nguyen la
tim so nguyen a de : a^2 + 5a +4 / a + 5 la mot so nguyen
cho x, y la cac so nguyen duong sao cho A = x^4 + y^4 / 15 cung la so nguyen duong . cmr : x va y deu chia het cho 3 va 5 , tu do tim gtnn cua A
A=\(\dfrac{\sqrt{x-3}}{2}\) Tim x de A la so nguyen
so nguyen a de \(\frac{3}{7-3a}\)lá số tự nhiên a là
tim gia tri nguyen cua x de bieu thuc:x^2+7/x+1 cung nhan gia tri la so nguyen
tim so tu nhien n<30 thoa man n,n+2,n+6 deu la snt
Tim n de bieu thuc sau la so nguyen : P = \(\dfrac{3n+2}{n-1}\)
so cac so nguyen to co 2 chu so la