(3x - 2)3= 2.32
[3x-2]3=2.32
[3x-2]3=2.32
[3x-2]3 = 64
(3x-2)3 = 43
3x - 2 = 4
3x = 4 + 2
3x = 6
x = 6 : 3
x = 2
Ta có: \(\left(3x-2\right)^3=2\cdot32\)
\(\Leftrightarrow3x-2=4\)
\(\Leftrightarrow3x=6\)
hay x=2
[3x-2]3=2.32 giúp mk vs ai nhanh mk tim cho
(3x-2)3=2.32
(3x-2)3=64
(3x-2)3=43
3x-2=4
3x=4+2
3x=6
x=6:3
x=2
Chúc bạn học tốt !
Ta có:
\(\Leftrightarrow3x-2=4\)
\(\Leftrightarrow3x=6\)
hay x=2
HELP MÌNH VS 3X-3-32=2.32
\(\Leftrightarrow3^{x-3}=27\)
=>x-3=3
hay x=6
CMR:31/2.32/2.32/3...60/2=1.3.5...59
mình đang cần gấp các bạn cố giúp nha
Tìm số tự nhiên x, biết:
a, 3 x - 2 3 = 2 . 32
b, 5 x + 1 - 5 x = 500
a, 3 x - 2 3 = 2 . 32
3 x - 2 3 = 64
3 x - 2 3 = 4 3
3 x - 2 = 4 ⇔ x = 2
b, 5 x + 1 - 5 x = 500
5 x . 5 - 5 x = 500
5 x . ( 5 - 1 ) = 500
5 x . 4 = 500
5 x = 125 = 5 3
x = 3
tim x
2 mũ x+2 mũ x+1 =96
(3x+2)mũ 3=2.32
5 mũ x+1 -5x =500
1 x 32+7x8+4x
=200x
(3.x-2) mũ 3=2.32 giúp mình với
`@` `\text {Ans}`
`\downarrow`
`(3x - 2)^3 = 2*32`
`=> (3x - 2)^3 = 2*2^5`
`=> (3x - 2)^3 = 2^6`
`=> (3x - 2)^3 = 4^3`
`=> 3x - 2 = 4`
`=> 3x = 6`
`=> x = 6 \div 3`
`=> x = 2`
Vậy, `x = 2.`
=>(3x-2)^3=64
=>3x-2=4
=>3x=6
=>x=2
mở ngoặc 3.x-2 đóng ngoặc tất cả mũ 3 =2.32
\(\left(3x-2\right)^3=2.32\)
\(\Leftrightarrow\left(3x-2\right)^3=64\)
\(\Leftrightarrow\left(3x-2\right)^3=4^{^3}\)
\(\Rightarrow3x-2=4\)
\(\Leftrightarrow3x=6\)
\(\Leftrightarrow x=2\)
Vậy \(x=2\)
Chứng minh rằng:
a)31/2.32/2.33/2....60/2=1.3.5....59
b)2!/3!+2!/4!+2!/5!+...+2!/n! < 1
=1.48/2.2.2.2.40/2.2.2.56/2.2.2.36/2.2.44/2.2.52/2.2.60/2.2.34/2.38/2.42/2.46/2.50/2.54/2.58/2.31.33...59=1.3.5...59 cần chứng minh