How to calculate log3 (4 √ 27 / 3)? 3 is the base number, (4 √ 27 / 3) is the true number: the square root of 27 / 3

How to calculate log3 (4 √ 27 / 3)? 3 is the base number, (4 √ 27 / 3) is the true number: the square root of 27 / 3

4 √ 27 / 3 to the third quarter of 3 / 3 is equal to the negative quarter of 3, so the answer should be - 1 / 4

Calculate [(7-4 √ 3) ^ 2] and then open the fourth root

7-4√3=3-4√3+4
=(√3-2)^2
[(7-4 √ 3) ^ 2] open the fourth root
=(√ 3-2) ^ 4]
=|√3-2|
=2-√3

Who knows which numbers are included in integers? Which numbers are included in natural numbers? Which types are included in fractions?

Integers include positive integers and negative integers and zeros, such as - 2, - 1,0,1,2; natural numbers are 0 and positive integers; fractions include positive fractions, negative fractions and fractions, positive and negative fractions, such as - 1 / 2, - 0.6,2 / 5, etc. fractions can also be divided into true fractions, with fractions, and others are forgotten

2.7.9.14. (). (). 26.31.36 regular filling

The answer should be 17 & nbsp;, 22
There should be two brackets in the middle, which can be considered as a combination of two groups of sequences. After the odd even sequence is separated, it can be found that the difference between 2 and 9 is 7, 26 and 36 is 10, which can be inferred as the difference sequence of 7, & nbsp; 8, & nbsp; 9, & nbsp; 10, and so on. The even term sequence can get the answer

The product of four continuous natural numbers plus 1 must be a square number

Certification:
Any four consecutive natural numbers can be set as N, N + 1, N + 2, N + 3
n(n+1)(n+2)(n+3)+1
=[n(n+3)(n+2)(n+1)]+1
=(n^2+3n)(n^2+3n+2)+1
=(n^2+3n)^2+2(n^2+3n)+1
=[(n^2+3n)+1]^2
So the product of 4 continuous natural numbers plus 1 must be a square number

(Mathematics of senior one) given the function f (x) = 2x ^ 2 + x-3, find the maximum value of F (x) on [- 1,2]
Using the method of senior one to solve the problem

f(x)=2x^2+x-3=2（x^2+1/2x）-3
=2（x+1/4）^2-25/8
So when x = - 1 / 4, the minimum value of F (x) is - 25 / 8
If we draw a simple diagram, we can see that the opening of F (x) is upward,
When x = 2, it is far away from when x = - 1 / 4 (when the minimum value is obtained) than when x = - 1,
So when x = 2, f (x) has a maximum
We get f (x) = 8 + 2-3 = 7

To me,the past is black and white,but the future is alwalys colo
what do you mean

To me, the past is black and white, but the future is color

If the solution of the equation 9x-17 = KX about X is an integer, what is the value of the integer k?

The results show that (9-k) x = 17, x = 179 − K, ∵ x is a positive integer, 9-k = 1 or 17, k = 8 or - 8

Solving 50 problems of linear inequalities of one variable
50 one-time inequality problems, single calculation, no filling in the blank. To number in the front of the problem, each blank line, good words plus reward points, thank you!

3x(x+5)＞3x2+7 x-4 < 2x+1 3x+14 > 4(2x-9) 3x-7≥4x-4 2x-3x-3＜6 0.4(x-1)≥0.3-0.9x x-4 < 2x+1 2x-6 < x-2 3×10x98 2x-3x+3＜6 2x-3x+1＜6 2x-3x+3＜1 2x-19＜7x+31 3x-2(9-x)＞3(7+2x)-(11-6x) 2(3x-1)-3(4x+...

There are 50 numbers, and their average number is 45. If two numbers 12 and 30 are rounded off, the average number of the remaining numbers is ()
A. 46B. 45C. 50D. 43

There are 50 numbers, and their average number is 45. Then the sum of these 50 numbers is 50 × 45 = 2250. If two numbers 12 and 30 are rounded off, the remaining average number is 2250 − 12 − 3048 = 46