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!
Cho S=1+3+3^3+......+3^31.Tim chu so tan cung cua S , tu do suy ra S k phai la so chinh phuong
mot so chinh phuong co chu so hang chuc la mot so le . tim chu so tan cung cua so chinh phuong do
tap hop cac chu so tan cung co the co cua mot so chinh phuong la
tap hop cac chu so tan cung co the co cua 1 so chinh phuong la
\(A=1+3^1+3^2+3^3+...+3^{30}\)
tim chu so tan cung cua A va chung minh rang A ko phai la so chinh phuong
1 so chinh phuong co chu so tan cung khong the la chu so nao
A.0
B.6
C.9
D.8
Cac ban co phai la so 0 phai khong?
tap hop cac chu so tan cung co the cua mot so chinh phuong la
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