Các câu hỏi tương tự
cho A=1+3+32+33+....+330 chung minh A k phai la so chinh phuong
cho A=3+4+42+...+420 chung minh rang A k phai la so chinh phuong
cho A=1+1919+93199+19931999 chung minh rang A k phai la so chinh phuong
cho a bang 2^2+2^3+...+2^20 chung minh rang A+4 khong phai la so chinh phuong
mn giup minh voi
cam on nhung ban nao da giup minh giai bai toan nay
Cho B=2+2^2+.....+2^2019
a, Tim x eN sao cho A+2=2^x+100
b, A+2 co phai la mot so chinh phuong khong
c, A =3+3^2+....+3^300
chung to A chia 13
d, 2A + 3 co phai la so chinh phuong ko
Cho A=5+5^2+5^3+...+5^2016
a, A la hop so hay so nguyen to
b,A co phai la so chinh phuong khong ?
giup minh giai voi nha cac ban \(\)
Cho A= 10^2012 + 10^2011 + 10^2010 + 10^2009 + 8
a, chung minh A chia het cho 24
b, chung minh A ko phai la so chinh phuong
cho A=30+31+32+33+....+330 chung minh rang tong A ko phai la so chinh phuong
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