Các câu hỏi tương tự
so chinh phuong lon nhat co 3 chu so la:........?
(ai tra loi dung nhanh nhat minh tick cho 2 cai lun)
cho A=30+31+32+33+....+330 chung minh rang tong A ko phai la so chinh phuong
cho A=1+3+32+33+....+330 chung minh A k phai la so chinh phuong
cho A=1+3+32+33+....+330 chung minh A k phai la so chinh phuong cho minh cach giai nha
cho A =3+3^2+.........+3^2004
chung minh A chia het cho 130
A co phai la so chinh phuong hay khong
lam cu the nhe
\(A=1+3^1+3^2+3^3+...+3^{30}\)
tim chu so tan cung cua A va chung minh rang A ko phai la so chinh phuong
cho S=1+3^1+3^2+3^3+...........+3^28+3^29+3^30
CMR:S khong phai la so chinh phuong
hay chung minh rang A la so chinh phuong biet rang :A =1^3 + 2^3 + 3^3 + 4^3
cho A=2*3*5*7*9*......*Pn la tich cua aso nguyen to dau tien. Chung to rang 3 so A-1;A;A+1 KHONG CO SO NAO LA SO CHINH PHUONG