Tim x , biet : 5 < x < 6 va

a] x la so tu nhien

b] x la so thap phan co 1 chu so o phan thap phan

Cac ban oi , giai nhanh bai nay cho minh voi , mai minh da hoc roi . Ban nao giai nhanh va dung se duoc minh bam like nhieu . Cam on cac ban nhieu nhe 

A= 0.10*0.01 * 0.001* 0.0001* 0.00001 * ....*0.00.....01 co bao nhieu chu so 0 nam sau dau phay biet thua so cuoi cung co 20 chu so 0 o phan thap phan

Tu so 19 den 20 co bao nhieu chu so thap phan neu o phan thap phan co 3 chu so (lam on giai ca cach lam cho minh) :))

tong cua 1 so tu nhien va 1 so thap phan la 62 42 .khi cong 2 so nay ban quen mat dau phay o so thap phan va dat tinh cong nhu so tu nhien nen ket qua sai la 3569 . tim so tu nhien va so thap phan da cho

trinh bay bai giai giup minh nhe

1..Voi cac chu so 0;1;2;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen

2..Voi cac chu so 2;8;1;5.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen

3..Voi cac chu so 0;4;6;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 3 chu so o phan thap phan

4..Voi cac chu so 0;2;4;6.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan thap phan

Cac chu so phan muoi , phan tram cua mot so thap phan co hai chu so o phan thap phan la hai so tu nhien lien tiep co tong bang 11. Tich cac chu so o phan thap phan bang phan nguyen cua so do.tim so thap phan do !

         Giai chi tiet ho minh nhe!

co bao nhieu phan so bang phan so 17/32 ma tu so va ma tu so deu la so co 3 chu nho viet ca loi giai vao nhe

hay cho biet co tat ca bao nhieu so thap phan co 2 chu so o phan thap phan ma so do lon hon 12,5 va nho hon 13,4

lam can cach giai 

hay cho biet co tat ca bao nhieu phan so bang phan so 57/152 ma tu so va mau so deu co 3 chu so. Ban nao co cau tra loi thi ghi cach giai lai nhe