Các câu hỏi tương tự
Tính tổng
B=3-3 mu 2 +3 mu 3 -......- 3 mu 100
A=1+2+ 2 mu 2 +......+2 mu 100
tính tổng
B= 7-7 mu 4 + 7 mu 4 -........+7 mu 301
A = 1 + 5 mũ 2 + 5 mu 4 + 5 mu 6 +.....+5 mu 200
tính
A= 1/7+1/7mu 2 + 1/7 mu 3+......+1/7mu 100
B=-4/5+4/5 mu 2 - 4/5 mu 3 + ....+4/5mu 200
tính A=25 mũ 8 + 25 mũ 4 + 25 mu 20 +......+25 mu 4 +1 / 25 mu 20 + 25 mu 28 + 25 mu 26 +.....= 25 mu 2 +1
tinh tong s=1 mu 2 cong 2 mu 2 conng 3 mu 2 cong .... cong 100 mu 2
Xem chi tiết
chung minh rang 1\2 mu 2+1\3 mu 2+1\4 mu2+...+1\100 mu 2 < 1
Cho a = 2 + 2 mu 2 + 2 mu 3 +.....+ 2 mu 100
tính 2.a
tìm x biết
2.a -a=2 mu x -2
chung to H chia het cho 155 , biet H = 2 + 2 mu 2 + 2 mu 3 + 2 mu 4 + ......+ 2 mu 99 + 2 mu 100
F = 1 + 3 mu 1 + 3mu 2 + 3 mu 3 + ... + 3 mu 100
Mong cac ban lam giup mimh
B=1/3+1/3 mu 3 +1/3 mu 5 +1/3 mu 7 + ...+1/3 mu 99
M= 3/1 mu 2 . 2 mu 2 +5/2 mu 2 . 3 mu 2+7/3 mu 2 . 4 mu 2 + ...+19= 9 mu 2 . 10 mu 2
cau1tinh
a) A=4+ 2 mu 2 + 2 mu 3 +... +2 mu 20
b) tim x biet
(x+1) + (x+2) +...+(x+100)=5750