gọi số cần tìm là \(\frac{x}{7}\)
theo giả thiết \(\frac{-5}{9}< \frac{x}{7}< \frac{-2}{9}\)
=> \(\frac{-35}{63}< \frac{9x}{63}< \frac{-14}{63}\)=> \(-35< 9x< -14\)
=> \(\frac{-35}{9}< x< \frac{-14}{9}\)=> \(-3,888888888< x< -1,555555556\)=> \(x=-1,-2,-3\)
tim 2 phan so co tu la 9 biet gia tri moi phan so do lon hon -11/13 va nho hon -11/15
Tim tat ca phan so co may la so co mot chu so va moi phan so nay deu lon hon 7/9 nho hon 8/9
Mk dg can gap mn giup mk nhe
Cam on ak
Tim phan so co tu bang 7, lon hon\(\frac{10}{13}\)va nho hon \(\frac{10}{11}\)
bai 1: a) tim p/s co mau so bang 10, lon hon -7/13, nho hon -4/13
b) tim 10 so a/b biet -1/2<a/b<1/2
c) tim cac p/s -3/5<a/20<-1/4
ai tra loi nhanh va dung mk tick cho
tim 2 p/s co tu bang 9. biet rang gia tri moi p/s do lon hon -11/13 va nho hon -11/15
cho hai so tu nhien a va b {a>b} .tim tong cac phan so toi gian co mau bang 7 moi phan so lon hon a nhung nho hon b CÁC BAN GIẢI NHANH GIÚP MÌNH NHA
Tinh n biet qua diem B ve n duong thang phan biet (n lon hon hoac bang 2,n thuoc N) trong hinh ve co 870 goc doi dinh nho hon goc bet
do dai ba canh cua tam giac ABC co do dai banh 4;12;x biet x la mot so tu nhien . tim x ( cho biet moi canh cua tam giac nho hon tong hai canh va lon hon hieu cua chung)
Qua diem O ve n duong thang phan biet [n lon hon hoac bang 2]
a. Co bao nhieu goc trong hinh ve ?
b.Co bao nhieu cap goc doi dinh nho hon goc bet trong cac goc tren?
