tính nhanh : 3 x 4 x 5/ 10x 2 x6
6x8x12x16/4x12x8x6
giúp mình nhanh nha minh can gap
TÍNH F= 1*1!+2*2!+3*3!+4*4!+5*5!
NHANH LEN NHA MINH CAN RAT GAP
giup minh voi
A=5+|1/3-x|
ai nhanh minh cho 2 tich nha
minh dang can gap
tim gia tri bieu thuc sao cho la so nho nhat
Với x < 1/3 thì :A= 5+1/3 - x = 16/3 - x
với x\(\ge\)1/3 thì A= 5 + x -1/3 = x+ 14 /3
tinh nhanh
( 1 + 3 + 5 + 7 + .... + 2003 + 2005) x ( 1212 x 27 - 2727 x 12)giup minh voi minh dang can gap lam
nhanh len nha
cam on truoc
( 1 + 3 + 5 + 7 + ... + 2003 + 2005 ) x ( 1212 x 27 - 2727 x 12 )
= ( 1 + 3 + 5 + 7 + ... + 2003 + 2005 ) x ( 32724 -32724 )
= ( 1 + 3 + 5 + 7 + ... + 2003 + 2005 ) x 0
= 0
vu cao minh sai roi
de keu la tinh nhanh ma
Thì thế gọi là tính nhanh còn gì
may ban tra loi nhanh nha minh can gap
\(\sqrt{4x-20}-3\sqrt{\dfrac{x-5}{9}}=2\)
\(\sqrt{4x-20}\)- 3\(\sqrt{\dfrac{x-5}{9}}\)=2
= \(\sqrt{4x-4.5}\)-3\(\sqrt{\dfrac{x-5}{9}}\)=2
= 2.2\(\sqrt{x-5}\)-3.9\(\sqrt{x-5}\)=2
= -23\(\sqrt{x-5}\)=2
= -23.x-5=2
=-23x=2+5
-23x =7
x =\(\dfrac{-7}{23}\)
x= -0.3
[130 - 3 . ( 5 . 24 - 52 . 2 ) : 23 ]
125 - 5 ( 3x - 1 ) = 55 : 53
4x - 1 + 40 = 65
giup minh nhanh nha cac ban minh can gap
A =118.75
B=125 -5 .(3.X -1) =25
5.(3.X-1) =100
3.X-1=20
3X =21
X=7
[130 - 3 . ( 5 . 24 - 52 . 2 ) : 23 ]
125 - 5 ( 3x - 1 ) = 55 : 53
4x - 1 + 40 = 65
giup minh nhanh nha cac ban minh can gap
[130 - 3.(5.24 - 52.2) : 23]
= [ 130 - 3.30:23]
= 130 - 11,25
= 118,75
b) 125 -5.(3x-1) = 55:53
125 -5.(3x-1) = 25
5.(3x-1) = 100
3x-1 = 20
3x = 21
x = 7
c) 4x-1 + 40 = 65
4x:4 + 1 = 65
4x:4 = 64
4x = 256 = 44
=> x = 4
\(4^{x-1}+1=65\)
\(4^{x-1}=65-1=64=4^3\)
\(x-1=3=>x=4\)
4/3<x<9/4
tra loi gap minh dang can lele nhanh nhanh nhanh di
Chỉ có băng 2 thôi bạn bởi vì
4/3=1 hơn còn 9/4= 2 hơn nên ở giửa phải là 2
Chỉ có thể là 2 thôi
bởi vì 4/3 = 1 hơn còn 9/4=2 hơn
nên số ở giửa phải là 2
a. x \(\div\)( 1/1*3 + 1/3*5 + ...... + 1/101*103 ) =1 .
b.( 1/1*2 + 1/2*3 + 1/3*4 + ........ + 1/11*12) * x =2
c. x : 3/4 = 2x * 7/3 +5
Cac ban giai theo dang tim x nha . Cam on nhieu. Nhanh nhe vi minh can gap
X+1/2+X+2/3+X+3/6
Nhanh mik can gap giai day du nha
đề bài là gì vậy bạn uiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Thui mình giải đại nhennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
=(x+x+x)+(1/2+2/3+3/6)
=3x+(3/6+4/6+3/6)
=3x+15
Hết ùiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Bye nhennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn