Các câu hỏi tương tự
tim 1 so tu nhien co 3 chu so biet rang binh phuong cua chu so hang chuc bang tich cua 2 chu so kia va so tu nhien do tru di so gom 3 chu so day nhung viet nguoc lai bang 495
tim so co 3 chu so sao cho hieu cua so ay va so gom 3 chu so ay viet theo chieu nguoc lai la mot so chinh phuong
Tim so tu nhien co 3 chu so , biet rang binh phuong cua chu so hang chuc bang tich cua 2 chu so kia va so tu nhien do tru di gom 3 chu so ay viet theo thu tu nguoc lai bang 495
tim so tu nhien co hai chu so thoa man ba dieu kien sau.tong cac chu so cua no khong nho hon 7 tong binh phuong cac chu so khong lon hon 30.hai lan so duoc viet boi cac chu so cua so phai tim theo thu tu nguoc lai khong lon hon so do
tim 1 so co 2 chu so . biet so do la lap phuong cua so tu nhien va tong cac chu so cua no bang binh phuong cua mot so tu nhien
tim so tu nhien co ba chu so,biet rang binh phuong cua chu so hang chuc bang tich hai so kia va so tu nhien do tru di so gom ba chu so ay viet theo thu tu nguoc lai bang 495?
1. Tim tat ca cac so co 2 chu so sao cho moi so gap 2 lan tich cua no?
2. Tim so nguyen to co 3 chu so biet rang neu viet so do theo thu tu nguoc lai thi ta duc 1 so la lap phuong cua 1 so tu nhien?
3. Tim so tu nhien co 4 chu so biey chu so hang nghin bang chu so hang don vi chu so hang tram bang chu so hang chuc va so do viet duoc duoi dang tich cua 3 so nguyen to lien tiep?
tim so co hai chu so biet :
so can tim cong voi so do nhung viet theo thu tu nguoc lai ta duoc mot so chinh phuong
so tu nhien nho nhat khac ma tich cua so do voi 4 la mot so duoc viet boi cac chu so cua chinh no nhung viet theo thu tu nguoc lai