\(\left(x+1\right)+\left(x+2\right)+...+\left(x+100\right)=5750\)

\(\Rightarrow x+1+x+2+...+x+100=5750\)

\(\Rightarrow\left(x+x+...+x\right)+\left(1+2+...+100\right)=5750\)

\(\Rightarrow100x+\left(100+1\right).100:2=5750\)

\(\Rightarrow100x+5050=5750\)

\(\Rightarrow100x=700\)

\(\Rightarrow x=7\)

(x+1)+(x+2)+...+(x+100) = 5750

x+1+x+2+...+x+100 = 5750

 100x + (1+2+...+100) = 5750

 100x + 101. 100/2 = 5750

 100x + 5050 = 5750

 100x = 5750 - 5050 = 700

   x = 700 : 100 = 7

Vậy x = 7

\(28.76+23.28-28.13\)

\(=28.\left(76+23-13\right)\)

\(=28.86\)

\(=2408\)

28 . 76 + 23 . 28 - 28 . 13

= 28.(76 + 23 -13)

=28.86

=2408

đề bài là gì

Đề bài là so sánh 2 phân số sau ạ !

a) \(2^4=16\)

\(\RightarrowƯ\left(16\right)=\left\{1;2;4;8;16\right\}\)

b) \(3^2\cdot5=45\)

\(\RightarrowƯ\left(45\right)=\left\{1;3;5;15;45\right\}\)

idhfh9e48ugpwrqerdfeoroeiro4i47=1za=-t4i3

\(3^5\cdot4^5=\left(3\cdot4\right)^5=12^5\)

12⁵

`3^4.3`

`=3.3.3.3.3`

`=3^5`

`=243`

3 mũ 5 nha bn

\(1^1\)=1

\(^{10^5}\)=10 x 10 x 10 x10 x 10 = 100000

1 x 100000 = 100000

thank you nhoa mãi iu

`(1/2+1)(1/3+1)(1/4+1)....(1/99+1)`

`=(1/1+2/2)(1/3+3/3)(1/4+4/4)....(1/99+99/99)`

`=3/2 . 4/3 . 5/4 ....... 100/99`

`=` \(\dfrac{3.4.5....100}{2.3.4.....99}\)

`=100/2`

`=50`

=3/2.4/3.5/4...........100/99

=3.4.5..........100/2.3.4............99

=100/2=50