How to calculate this in Linear Algebra / 1234 / / 2341 / / 3412 / / 4123/

How to calculate this in Linear Algebra / 1234 / / 2341 / / 3412 / / 4123/

Step 1: add column 2,3,4 to column 1, put forward the common factor 10 of column 1, and change it into 1 23 41 3 4 11 4 1 21 1 23. Step 2: multiply the first row by - 1 and add it to other rows to get 1 23 40 11 - 30 2 - 2 - 20 - 1 - 1 - 1. Step 3: R3 - 2r1, R4 + R1, get 1 23 40 11 - 300 - 4 400 0 - 4

1234+1234+1234+1234+4321+4321+4321＝

17899

375 = () of () = ()% = () of 9

375 = (3 of 8) = (37.5)% = (9 of 24)

Why is 28 divided by 0.8 equal to 35

1. You are still a child, have not learned decimal, then I tell you, this is a calculation problem, after division, it is 35
The sum of 35 0.8 is 28. We can understand that 5 0.8 is 4, because 35 is 7 times 5, so 7 4 is 28
2. People who know the answer and want to know the reason
Often the simplest problem is also the most difficult one
It's the same question as why one plus one equals two

6/（）=（）/8=18/（）=3/（）=0.375

Simplify 0.375 = 375 / 1000 = 75 / 200 = 15 / 40 = 3 / 8
The answer is 6 / (16) = 3 / 8 = 18 / 48 = 3 / 8

6.18 * 9.9 + 0.2 * 6.18 (6.8 + 2.3) * (6.8-2.3)

6.18*9.9+0.2*6.18
=6.18*（9.9+0.2）
=6.18*10+6.18*0.1
=61.8+0.618
=62.418
（6.8+2.3）*（6.8-2.3）
=9.1*4.5
=40.95

1 + 8 + 0 + 0 = 48 + 8 + 8 = 6, then 0 + 9 + 8 + 6 =?

1+8+0+0=4
1 has no circle, 8 has two circles, 0 has one circle, 1 + 8 + 0 + 0 has four circles, which is equal to 4
8+8+8=6
8 has two circles, 8 + 8 + 8 has six circles, equal to 6
Then 0 + 9 + 8 + 6 = 5
0 is a circle, 9 is a circle, 8 is two circles, 6 is a circle, 0 + 9 + 8 + 6 is a total of 5 circles, so it is equal to 5

0.375 is a few eighths

3/8

What is 0.375 + 25 / 8?

It's 0.695. Hope to adopt it!

How much is (x ^ 2-y ^ 2) 2 divided by (x + y) ^ 2 and then divided by (X-Y)

[(x²-y²)²/(x+y)²]/(x-y)
=[(x+y)(x-y)/(x+y)]²/(x-y)
=(x-y)²/(x-y)
=x-y
If you don't understand, please ask, I wish you a happy study!