Under the teacher's education, he corrected the purpose of his study

Under the teacher's education, he corrected the purpose of his study


Under the teacher's education, he corrected his learning attitude



Under the teacher's education, he made clear his learning attitude


Under the teacher's education, he corrected his learning attitude



After the teacher's patient education, he made clear his learning attitude


After the teacher's patient education, he corrected his learning attitude
Or after the teacher's patient education, he made clear the learning goal



The square of lg5 (LG8 + lg1000) + (LG2 radical 3) + LG1 / 6 + lg0.06 =?


Square of lg5 (LG8 + lg1000) + (LG2 radical 3) + LG1 / 6 + lg0.06
=lg5(lg2+1)*3+(√3lg2)^2-lg6+lg0.06
=3(1-lg2)(lg2+1)+(√3lg2)^2-2
=3-3(lg2)^2+3(lg2)^2-2
=1



A math problem in grade two! Help!
A two digit number on the one digit is 4. If you transpose the number on the one digit and the familiar number on the ten digit, the ratio of the two digit number and the original two digit number is 7 / 4. Find the two digit number
Use the fractional equation to solve it!


Let the number in the original two digit ten be X
So the two digits = 10x + 4
After the swap, it is 4 * 10 + x = 40 + X
From the theme
(40+x)/(10x+4) = 7/4
66x = 132
x =2
So the original two digit number is 10 * 2 + 4 = 24



The relations between element a and set a, B and set B are represented by appropriate symbols
1) A = - 1, set a: {x │ 3 (x + 1) < 1 + X}
2) B = √ 2, set B: {x │ 3 - (1-x) > 3.4}


X = - 1 does not hold
a∉A
B = √ 2 established
b∈B



What are the double syllables


It is also called two syllables. It is a syllable composed of an initial and a non intermedia vowel (the initial does not contain I, u and ü)
de、shi、yi、bu、you、zhi、le、ji、zhe、wo、ren、li、ta、 dao.zhong 、zi、guo、shang、ge、men、he、wei、ye、du、gong、zhu、lai、sheng、di、zai、ni、ke、yao、wu、yu、jin、chan.



Find the chord length formula of circle!
The center angle is 10 ° and the radius is 400. Find the chord length corresponding to the center angle. Please be simple, but the process should be clear! Thank you


10 ° is not a special angle. Use a calculator
See below (click to enlarge)



The formula of loss ratio(


Loss rate = loss money △ cost × 100%
---------------------------------------------
If a piece of clothing costs 80 yuan, it will be sold at 60 yuan
So the money it loses is 80-60 = 20
Loss ratio = 20 △ 80 × 100% = 0.25 × 100% = 25%
So the loss rate is 25%



Solving logarithm equation: 4 ^ X-6 ^ x = 2 * 9 ^ x (Senior One) to process!