Các câu hỏi tương tự
so 144 co phai la so chinh phuong hay ko, cac so chinh phuong co chu so tan cung la gi.Cam on!
3n +1 co phai la so chinh phuong ko
Tong sau co phai la so chinh phuong ko: 52+122
S=2+2^2+2^3+…+2^2012. S co phai 1 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)B=2+4+6+8+...+2n voi n thuocN
so B co phai la so chinh phuong ko
Cho tong S=1+2+2^2+2^3+...+2^2015.Hoi S+18 co phai la mon so chinh phuong ko,vi sao
Cho S = 2011.72015+4.19766 mu2015
Tim chu so tan cung cua S.S co phai la so chinh phuong ko?
1)viet day tu nhien tu 1-101 tao thanh so A
a) A co phai hop so khong
b)A co phai so chinh phuong khong
c)A co the co 35 uoc khong
2)tim so chinh phuong co 4 chu so chu so hang nghin bang chu so hang don vi va so do co the viet duoi dang (5n+4)2
3.5.7.9.11+3 ; 2.3.4.5.6-3 co phai la so chinh phuong