Các câu hỏi tương tự
Tim so nguyen x,y biet
a) (x+5) mu 2 + (2y - 8 ) mu 2 = 0
b)(x + 3).(2y - 1 ) = 5
cho a thuoc z. tim so nguyen x, biet
a) a+x=5
b) a-x=2
cho a thuoc Z. tim so nguyen x, biet
a. a + x = 5
b. a - x = 2
Cho x thuoc z va -7 < x < 9
a. viet tap hop so nguyen x
b. tinh tong so nguyen x
so nguyen la gi .neu x la so nguyen thi x thuoc tap hop Z kohay tap hop z la tap hop cac so nguyen à
A = 2/ x-1 .tim dieu kien cua x de A la phan so . tim A khi x = 2 ; x = -3. tim dieu kien cua x de A la so nguyen ( A thuoc Z )
bai 1 tim so nguyen duong nho nhat co 3 chu so , so nguyen a lon nhat co 2 chu so
bai 2: tim x thuoc Z biet
a, / x/ = -5
b, /x/= <7
c, /x/ = 4
d, /x/=0
cho bieu thuc: M=x^2-5 phan x^2 (x thuoc Z)
Tim x thuoc Z de M co gia tri nguyen
1. tim cac cap so nguyen duong (x, y) sao cho:
2 x3 + xy = 11
2. tim cac cap so nguyen duong (x, y, z)sao cho:
x + y + z = x*y*z
3. tim x thuoc z, biet;
|x| = -2003
|x| = |-2003|
minh dang can gap lam. chieu mai phai nop rui