cho 1 so chinh phuong co 4 chu so. Biet rang chu so tan cung cua no la so nguyen to, tong cac chu so cua no cung la so chinh phuong va can bac 2 cua no co tong cac chu so cung la so chinh phuong
Tim so chinh phuong gom 4 chu so biet rang so gom 2 chu so dau lon hon so gom 2 chu so sau 1 don vi.
Tim so tu nhien n co hai chu so biet rang hai so (2n+1) va (3n+1) dong thoi la so chinh phuong.
Tim mot so chan lon nhat co 5 chu so ma 3 chu so dau giu nguyen gia tri tu trai sang phai tao thanh mot so chinh phuong va 3 chu so cuoi giu nguyen thu tu tao thanh 1 lap phuong dung
Cho A = 3+3^2 + 3^3+... +3^2016
a, Tinh A
b, Tim chu so tan cung cua A
c,A co la so chinh phuong khong
tim mot so co 3 chu so biet rang neu tang chu so hang tram them n don vi giam chu so hang chuc va don vi di n don vi ta duoc 1 so co 3 chu so gapn lan chu so ban dau
a) Cho a/b=2012^4. Tinh A=2a-3b/b
b) Tim tat ca cac so chinh phuong co 4 chu so ma chia het cho 33.
Giúp minh nhe!!!!!!!!
tim mot so tu nhien co ba chu so biet rang neu tang chu so hang tram len n don vi va giam chu so hang chuc di n don vi thi ta duoc so co chu so gap n lan chu so da cho
cho n la so tu nhien co 2 chu so.Tim n biet n+4 va 2n deu la cac so chinh phuong
