TH1
42:x=6
x= 42 :6
X= 7
TH 2
36:x = 6
X = 36: 6
X= 6
TH1
42:x=6
x= 42 :6
X= 7
TH 2
36:x = 6
X = 36: 6
X= 6
cho a =1/3 - 2/3*2 + 3/3*3 - 4/3*4 + 5/3*5 - ...... + 2023/3*2023 - 2024/3*2024 hãy so sánh a với 20/3
A = \(\dfrac{1}{3}\)-\(\dfrac{2}{^{ }3^2}\)+\(\dfrac{3}{3^3}\)-\(\dfrac{4}{3^4}\)+...+\(\dfrac{2023}{3^{2023}}\)-\(\dfrac{2024}{3^{2024}}\) so sánh A với \(\dfrac{3}{16}\)
thu gọn a=1/2-1/2^2+1/2^3-1/2^4+...+1/2^2023-1/2^2024
Biết: x + (x - 1) - (x - 2) + (x - 3) - (x - 4) +.....+ (x - 2023) - (x -2024) =0
Vậy x =?
A. 0
B. -1011
C. -1012
D. -2024
1-2+3-4+5-6+7-8+...+2023-2024
(1-1/2) (1-1/3) (1-1/4)... (1-1/2023) (1-1/2024)
P=1-2-3+4+5-6-7+8+.........+2023-2024
1) Tính hợp lý :
P=1-2-3+4+5-6-7+8+.........+2021-2022-2023+2024
so sánh c và d : C= \(\dfrac{2^{2024}-3}{2^{2023}-1}\) và D =\(\dfrac{2^{2023}-3}{2^{2022}-1}\)