Write the general formula of the following sequence: (1) 2,4,8,16 (2) 1,8,27,64 (3) - 1,1 / 2, - 1 / 3,1 / 4 (4) 1, √ 2, √ 3,2 It's a root sign, you know

Write the general formula of the following sequence: (1) 2,4,8,16 (2) 1,8,27,64 (3) - 1,1 / 2, - 1 / 3,1 / 4 (4) 1, √ 2, √ 3,2 It's a root sign, you know

(1) 2^n
(2) n^3
(3) [(-1)^n]/n
(4) √n

The value of X in sequence 1, 8, 27, 64, x, 216 is?

Classmate,
In fact, the first number is the third power of 1, the second number is the third power of 2, and so on
Because 1 = 1 & sup3;, 8 = 2 & sup3;, 27 = 3 & sup3;, 64 = 4 & sup3;, 216 = 6 & sup3;, x = 5 & sup3; = 125

48x (7 / 12 + 3 / 8) / / 2 / 3 23-9 / 8x4 / 3 △ 1 / 5 / 27} {(2 / 3 + 1 / 5) X11 / 3}
7x99 of 25 + 7x99 of 25
It must be simple

48x (7 / 12 + 3 / 8) / / 2 / 3 = (48 * 7 / 12 + 48 * 3 / 8) * 3 / 2 = 46 * 3 / 2 = 6923-9 / 8x4 / 3 △ 1 / 27 = 23-8 / 9 * 3 / 4 * 27 = 23-18 = 55 △ {(2 / 3 + 1 / 5) x13 / 1} = 5 △ {13 / 15 * 1 / 13} = 5 * 15 = 7525 / 7x99 + 25? (incomplete question)

10,4, - 5, - 2, there are several algorithms to calculate 24 points

10+(4+(-5*-2))
(10+4)+(-5*-2)
10+(4+(-2*-5))
(10+4)+(-2*-5)
10+((-5*-2)+4)
Your name is domineering

Six algorithms for calculating the number of 6,5,3,2 equal to 24

6*(5+3)/2=24
(6*(5+3))/2=24
6*((5+3)/2)=24
6*(5-3+2)=24
6*((5-3)+2)=24
6*(5-(3-2))=24
6*5-3*2=24
6*5-(3*2)=24
(6*5)-3*2=24
6*(5-3)*2=24
(6*(5-3))*2=24
6*((5-3)*2)=24
(6*5)-(3*2)=24
6*(5+2-3)=24
6*(5+(2-3))=24
6*((5+2)-3)=24
6*5-2*3=24
6*5-(2*3)=24
(6*5)-2*3=24
(6*5)-(2*3)=24
6*(3+5)/2=24
(6*(3+5))/2=24
6*((3+5)/2)=24
6*(2+5-3)=24
6*(2+(5-3))=24
6*((2+5)-3)=24
6*2*(5-3)=24
6*(2*(5-3))=24
(6*2)*(5-3)=24
(6/2+5)*3=24
((6/2)+5)*3=24
6/2*(5+3)=24
(6/2)*(5+3)=24
6/(2/(5+3))=24
6*(2-3+5)=24
6*((2-3)+5)=24
6*(2-(3-5))=24
6/2*(3+5)=24
(6/2)*(3+5)=24
6/(2/(3+5))=24
5*6-3*2=24
5*6-(3*2)=24
(5*6)-3*2=24
(5*6)-(3*2)=24
(5+6/2)*3=24
(5+(6/2))*3=24
5*6-2*3=24
5*6-(2*3)=24
(5*6)-2*3=24
(5*6)-(2*3)=24
(5+3)*6/2=24
((5+3)*6)/2=24
(5+3)*(6/2)=24
(5-3)*6*2=24
((5-3)*6)*2=24
(5-3)*(6*2)=24
(5+3)/2*6=24
((5+3)/2)*6=24
(5+3)/(2/6)=24
(5-3+2)*6=24
((5-3)+2)*6=24
(5-(3-2))*6=24
(5-3)*2*6=24
((5-3)*2)*6=24
(5-3)*(2*6)=24
5*3*2-6=24
(5*3)*2-6=24
5*(3*2)-6=24
(5*3*2)-6=24
(5*(3*2))-6=24
((5*3)*2)-6=24
(5+2-3)*6=24
(5+(2-3))*6=24
((5+2)-3)*6=24
5*2*3-6=24
(5*2)*3-6=24
5*(2*3)-6=24
(5*2*3)-6=24
(5*(2*3))-6=24
((5*2)*3)-6=24
3*(6/2+5)=24
3*((6/2)+5)=24
(3+5)*6/2=24
((3+5)*6)/2=24
(3+5)*(6/2)=24
3*(5+6/2)=24
3*(5+(6/2))=24
(3+5)/2*6=24
((3+5)/2)*6=24
(3+5)/(2/6)=24
3*5*2-6=24
(3*5)*2-6=24
3*(5*2)-6=24
(3*5*2)-6=24
(3*(5*2))-6=24
((3*5)*2)-6=24
3*2*5-6=24
(3*2)*5-6=24
3*(2*5)-6=24
(3*2*5)-6=24
(3*(2*5))-6=24
((3*2)*5)-6=24
2*6*(5-3)=24
2*(6*(5-3))=24
(2*6)*(5-3)=24
(2+5-3)*6=24
(2+(5-3))*6=24
((2+5)-3)*6=24
2*(5-3)*6=24
(2*(5-3))*6=24
2*((5-3)*6)=24
2*5*3-6=24
(2*5)*3-6=24
2*(5*3)-6=24
(2*5*3)-6=24
(2*(5*3))-6=24
((2*5)*3)-6=24
(2-3+5)*6=24
((2-3)+5)*6=24
(2-(3-5))*6=24
2*3*5-6=24
(2*3)*5-6=24
2*(3*5)-6=24
(2*3*5)-6=24
(2*(3*5))-6=24
((2*3)*5)-6=24

1/1+0/26+26/1 (488*6+550*9)/(6+9) (85/5+233)*8 5871/103+(247-82)/5-1 50*102-2835/27+5005

27 525.2 2000 89 10000

How to use simple algorithm for 24 × (5 / 12 + 3 / 8)

24*5/12+24*3/8

48 * (11 / 24-5 / 12 + 8 / 3) simple algorithm

48*(11/24-5/12+8/3)
=48*11/24-48*5/12+48*8/3
=22-20+128
=130

Simple algorithm of 12 / 24

12/24=2/1

A simple algorithm of 1.54 × 3.760.154 × 24.83.12 × 16.92

1.54×3.76+0.154×24.8+3.12×16.92
=1.54×3.76+1.54×2.48+3.12×16.92
=1.54×(3.76+2.48)+3.12×16.92
=1.54×6.24+3.12×16.92
=3.12×(1.54×2+16.92)
=3.12×20
=62.4