Các câu hỏi tương tự
a, Tim cac so nguyen duong x,y nho hon 10 sao cho 3x - 4y = -21
b, tim cac so nguen x,y sao cho xy -2x + 5y -12 = 0
tim cac so nguen duong a,b,c bt rang a<b<c ma \(\frac{1}{a}+\frac{1}{b}+\frac{1}{c}\)thuộc N*
giup minh hai bai nay nhe cac ban
*hai so 2^2013 va 5^2013 viet lien nhau thi duoc so co ? chu so
*tim so nguen a,b,c thuoc Z biet
a+b-c=-3;a-b+c=11;a-b-c=-1
tim cac so nguen x,y,z:x/y+y/z+z/x=y/x+z/y+x/z=x+y+z=3
cho cac so nguen : a = 10 , b = -18
a) viet tap hop cac uoc cua a , cac uoc cua b
b) viet tap hop cac so nguyen vua la uoc cua a vua la uoc cua b
c) viet tap hop cac so nguyen vua la boi cua a vua la boi cua b
Tim so nguen x sao cho cac bieu thuc sau co gia tri nho
a)A=(x-1)2+2014
b)B=/x+4/+2014
c)C=\(\frac{5}{x-2}\)
d)D=\(\frac{x+5}{x-4}\)
a,b la so nguen to 4×a×b-3×(a+b).Tim a,b
Bai 1:tim so nguyen P biet P+2va P+4 deu la nguyen to
bai 2: tong 2^100×7×11+81^3 la nguen to hay hop so ( giai thich)
Bai 3: tim so nguyen to P de P +2,p+6,P+8 deu la cac so nguyen to
Cho phan so a/35
a, tim so nguyen to a de a/35 rut gon duoc
b, Tim cac so a biet phan so do la phan so toi gian nho nhat hon 1