treo vat ngoai ko khi bang luc ke theo phuong thang dung so chi luc ke la 15N.khoi luong cua vat la
Cho 20 diem trong do cu qua 2 diem ta ke 1 duong thang
a/Neu khong co 3 diem nao thang hang thi ta ke duoc bao nhieu duong thang
b/neu co dung 5 diem thang hang thi ke duoc bao nhieu duong thang
TIM SO CHINH PHUONG CO HAI CHU SO SAO CHO NEU CONG SO DO VOI SO GOM HAI CHU SO AY THEO THU TU NGUOC LAI THI TA DUOC MOT SO CHINH PHUONG
tim so tu nhien co 2 chu so biet neu cong no voi so gom 2 chu so ay viet theo thu tu nguoc lai thi duoc so chinh phuong
tim 1 so tu nhien co 2 chu so, sao cho neu cong no voi gom 2 chu so ay vet theo thu tu nguoc lai thi ta duoc 1 so chinh phuong
Dung can Robecvan va luc ke de do khoi luong cua cung mot vat o vung xich dao .Khi do 2 dung cu cho mot ket qua .Neu mang ca 2 dung cu nay va vat den vung Bac cu thi so chi cua 2 dung cu co con giong nhau nua ko? Can nao dung?
1,TIM SO NGUYEN TO CO 3 CHU SO,BIET RANG NEU VIET SO DO THEO THU TU NGUOC LAI THI TA DUOC MOT SO LAP PHUONG CUA MOT SO TU NHIEN
chung minh rang neu a,b la tong cua2 so chinh phuong thi ab cung la tong cua 2 so chinh phuong
2015 duoc viet duoi dang hieu cua hai so chinh phuong nao? Hay neu ro cac cap so