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=1^2+2^2+3^2+...+56^2. S co phai la so chinh phuong khong
Cac Gia Tri Sau Co Phai So Chinh Phuong Khong
A=2+2^2+2^3+...+2^197
B=x^2012+(x+1)^2
B2
Tim n
n^2×2178 la so chinh phuong
tong S =1^2+2^2+3^2+...+30^2 co phai so chinh phuong khong?
Giup mih nhe Chieu mai nop rui . Thnks truoc ^^
Cho S=1+3+32+33+....+330
Tim CS tan cung cua S roi suy ra S ko phai la so chinh phuong
Giup mk voiiiiiiiiiiii
Tong sau co phai la so chinh phuong ko: 52+122
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 S=1+3^1+3^2+3^3+...........+3^28+3^29+3^30
CMR:S khong phai la so chinh phuong
cho A= 2^0 +2^1+2^2+.....+2^2017
a,A co la so chinh phuong ko
b,A+1 co la so chinh phuong ko