The n-th root of 1 is

Any power of 1 is 1

n-th root
When what is the value of X, are the following expressions meaningful?
(1) . radical X & sup2;
(2) . root X-2
(3) . root 3 times - x-4
(4) . radical - 1 / X
(5) . radical X & sup2; + 1
(6) . x root 4 x + 2

(1) The radical X & sup2; X is any real number
(2) . radical X-2 x is greater than or equal to 2
(3) Root sign 3 times - x-4 x is any real number
(4) . radical - 1 / x x ＞ 0
(5) . the root X & sup2; + 1 x is any real number
(6) The root of. X is 4 x + 2 x ≥ - 1 / 2 and X ≠ 0

The formula of 1 + 2 + 3 + 4 + 5 + 6 +. 99

(Prime Minister plus last phase) times the number of terms divided by 2

Add the operation symbol between 0.10.20.30.40.5 to make it equal to 1
The position cannot be changed

(0.1-0.2+0.3)/0.4+0.5=1

Point D is on side BC of triangle ABC, and angle B = angle 1. Is angle 2 equal to triangle BAC? Please give reasons. So I didn't offer a reward. I'll make it up then. Do you want to draw this picture~

This problem is not clearly described. What do ∠ 1 and ∠ 2 stand for? I'm going to do it again with my hypothesis, right
First of all, let's assume that ∠ 1 = ∠ BDA, ∠ 2 = ∠ ADC, then there is a known condition ∠ 1 = ∠ B
The inner angle of the triangle is 180 degrees, so
∠ B + ∠ BAC + ∠ C = ∠ 1 + ∠ 2 (complementary angle and 180 °) = 180 °
In this case, BAC + C = 2
So, it's not equal

The greatest common factor of a number and 60 is 12, and the least common multiple is 120______ ．

120 × 12 / 60 = 1440 / 60 = 24 A: the number is 24, so the answer is: 24

I saw an article about the harm of walking and listening to music?

I saw an article about the harm of listening to music when you are walking.

Xiao Hua, Xiao Ming and Xiao Li all go to volleyball training. Xiao Hua goes every three days, Xiao Ming every four days and Xiao Li every six days. On August 1, after all three of them took part in volleyball training, how many months and days do they go to training together again?

Find the common multiple of 3.4.6, which is 12
That is to say, we will meet again after 12 days, so it is August 13

The solution equation: x-32 = 21 1.5 x = 30 4 x = 80 7 x-17 = 39
Requirements: (1) compare the differences between the first three questions and the fourth one
(2) Talk about the basis of each step

(1) The coefficient of one question x is 1, while the coefficient of four questions x is 7
（2）x-32=21
Add 32 on both sides of the equation: x-32 + 32 = 21 + 32, x = 53;
1.5Ⅹ＝30
Divide both sides of the equation by 1.5: 1.5x/1.5 = 30 / 1.5, x = 20;
4Ⅹ＝80
Divide both sides of the equation by 4:4x / 4 = 80 / 4, x = 20;
7Ⅹ－17＝39
Add 17:7 X - 17 = 17 = 39 + 17, 7x = 56 on both sides of the equation,
Divide both sides of the equation by 7:7x / 7 = 56 / 7, x = 8

Simple calculation of 25.125 × 88

25.125×88
=（25+0.125）×88
=25×88+0.125×88
=25×（80+8）+0.125×（80+8）
=25×80+25×8+0.125×80+0.125×8
=2000+200+10+1
=2211

The n-th root of 1 is