1/3+2/32+3/33+.....100/3100
Cac ban giai giup minh bai ne nghen.Thank you
Cac ban giai giup minh bai nay voi
a 1+(-3)+2+(-4)+3+(-5)+...+98+(-100)
b 1+(-5)+2+(-6)+3+(-7)+...+99+(-103)
a) = -2 -2 -2 ... -2 -2 =50(-2)=-100
Minh can cac ban giai gap cho minh bai 4 de 2 va bai 1 de 3 giup minh vs a
2^3+3^3+4^3+...+20^3=? Giup minh giai bai nay nhe giai thich cach lam nhe cac ban
Giup minh giai bai toan nay voi
Khong thuc hien phep tinh xet xem tich sau co tan cung bang chu so nao
a.2*12*22*32*...*2012
b.3*13*23*...*2013
c.4*14*24*...*2004
d.2*12*22*...*2020
Cac ban giai ro giup minh nha.Minh cam on
giai phuong trinh (x-1)^2016+(x-2)^2016=1
cac ban lam giup bai nay cho minh vs. minh dang can gap. thank you nhiu
cam on ban nha. ban hoc truong nao vay?
/x-2017/+/x-2018/=1
Cac ban giup minh giai bai nay nha thank you
cac ban giai giup minh bai nay voi , nhanh nha minh dang can gap
1/2+ 1/4 +1/8 + 1/16 + 1/32 + 1/64
tinh bang cach thuan tien nhat mha
\(=\frac{32+16+8+4+2+1}{64}=\frac{63}{64}\)
chung to :1/3+2/3^3+3/3^3+4/3^4+...+100/3^100<3/4
mong cac ban giup do lam ho minh bai nay
bai toan (x+7)^2-x(x-3)=83 giai giup minh nhe cac ban! c.m cac ban rat nhieu
=>x^2+14x+49-x^2+3x=83
=>17x=34
=>x=2