tim m thuoc N sao cho m^2 + 2014 la so chinh phuong
a) cho A = 1+3+5+7+...+(2n+1) Voi n thuoc N
chung to rang A la so chinh phuong
b)B=2+4+6+8+...+2n voi n thuocN
so B co phai la so chinh phuong ko
a) cho A = 1 + 3 + 5 + 7 +......+(2n + 1) Voi n thuoc N
chung to rang A la so chinh phuong
b) cho B = 2 +4+6 + 8 + ....+ 2n Voi n thuocN
so B co the la chinh phuong ko
Tim n thuoc N sao cho: 1!+2!+3!+.......+n! la so chinh phuong
ai nhanh thi minh tick cho
trinh bay ca loi giai nua nhe
tim so tu nhien lon hon 0 sao cho tong
1!+2!+...+n! la so chinh phuong
b)tim 1 so co 4 chu so sao cho so do vua la s chinh phuong vua la so lap phuong
tim n de n^n+2n+12 la so chinh phuong
tim n de n^2+2n+12 la so chinh phuong
tim n de n^2+2n+12 la so chinh phuong
tim n de n^2-2n+18 la so chinh phuong