Ôn tập toán 6
Các câu hỏi tương tự
Gia tri tuyet doi cua mot so nguyen am va nguyen duong duoc ki hieu nhu the nao?
tim so co 2 chu so biet tong 2 chu so cua no bang 13 .neu doi vi tri 2 chu so cua so phai tim tthi so do tang them 9 don vi
giai theo cach lop 5 nha
Tim so tu nhien co 2 chu so biet rang so do gap doi tich cac chu so cua no
cho tap hop A cac so tu nhien co 2 chu so , biet chu so hang don vi gap doi chu so hang chuc
a, hay liet ke cac phan tu cua tap hop A
b, viet tat ca cac tap hop con cua A co 2 phan tu
c, viet tat ca cac tap hop con cua A cp 3 phan tu
bai 1
cho bieu thuc A = 5/n+1 voi N THUOC Z
a, de A la phan so thi n co dieu kien gi ?
b , tim tat ca cac gia tri nguyen cua n de gia tri A la 1 so nguyen ?
bai 2
cho bieu thuc M = 6/n-3 voi n thuoc Z .Co bao nhieu gia tri cua n de :
a, M ko phai la phan so
b , M la phan so va cp gia tri nguyen ?
bai 3 viet tap hop cacs so nguyen sao cho :
-12/4 < x <6/3
tinh tong gia tri so nguyen X biet gia tri tuyet doi cua X be hon hoac bang 5
Xem chi tiết
ong cac chu so cua mot so co 2 chu so bang 10 . neu thay doi thu tu cac chu so thi so do giam 36 don vi . tim so do .Cac ban oi giai theo cach lop 5 nh a co giao minh bao vay
tim cac gia tri nguyen cua n de phan so A=3.n+2/n-1 co gia tri la so nguyen
Voi gia tri nao cua x thuoc Z cac phan so sau co gia tri la 1 so nguyen
d, D=\(\dfrac{x^2-1}{x+1}\) e, E=\(\dfrac{n+2}{n-5}\)