Is three times the root two a fraction The form should be score But by definition, rational numbers include integers and fractions. Obviously, three-thirds of the root sign two is irrational, so it can't be called fractions···

It's not because fractions are rational numbers, that is to say, even if they can't be divided completely, they are infinitely circular decimals, while those with a root sign are irrational numbers, and they are infinitely non circular decimals

RELATED INFORMATIONS

1. It is proved that f (x, y) = sin (XY) / √ (x ^ 2 + y ^ 2) when x ^ 2 + y ^ 2 ≠ 0, and f (x, y) = 0 is continuous at (0,0) when x ^ 2 + y ^ 2 = 0
2. Let f (x) = {arctan [1 / (x-1)], X not equal to 1,0, x = 1. Find the limit of F (x), X tends to 1 minus, and the limit of F (x), X tends to 1 plus
3. Find the left and right limit, and determine whether the limit of function at this point exists, f (x) = arctan (1 / x), x = 0
4. Limx - > ∞ arctan (√ x2 + 2x-x) how to use the continuity of function to find the limit and kneel down to find the answer It's the square of the root x plus 2x, and then minus X.
5. Is LIM (x - > 4) (x ^ 2-4x) / (x ^ 2-3x-4) suitable to use the lobita theorem? What is applicable and what is not. Can't it be used except those two types?
6. Limit LIM (sinx-x) / x ^ 3 = LIM (- x ^ 3 / 6 / x ^ 3) = - 1 / 6, where X - > 0 - how to deduce these two steps? Principle and explanation Limit LIM (sinx-x) / x ^ 3 = LIM (- x ^ 3 / 6 / x ^ 3) = - 1 / 6, where X - > 0 - how to deduce these two steps? Principle and explanation X ^ 3 is the third power of X
7. Let's work out a math problem for me with a formula A is 5 / 21 of B and C is 4 / 5 of A. A, B and C donate 310 to each of them. How much do they donate? Write down the formula
8. For a three digit number, a hundred digit number is a, a ten digit number is B, and a single digit number is C, and a > C, exchange the position of a hundred digit number and a single digit number to get a new three digit number, please explain: The difference between the original three digits and the new three digits must be a multiple of 99
9. a. B, C are three digit hundreds, tens and ones, and a Who can help me? My wealth is zero
10. Let a, B and C be a three digit number of hundred, ten and one respectively, and a ≤ B ≤ C, then the maximum value that | A-B | + | B-C | + | C-A | can obtain is______ ．
11. If a ≤ 0, simplify a - √ A & # 178
12. A = 1, B = - 2, C = - 3, simplify a + C - A + B + C - B - A + B + C with letters In letters
13. (1) The square root of 1-4 is_______ (2) The arithmetic square root of 121 is_______ (3) The arithmetic square root of (- 4.3) ^ 2 is_______ (4) The inverse of the arithmetic square root of the root sign 81 is______
14. If root 2 = x, then x =? If the root sign x = x, then x =? If the root sign x > x, then the value range of X is________ ? Is the following statement true? A. 5 is the arithmetic square root of 25 B. Plus or minus 5 is the arithmetic square root of 25
15. The square of (a + 3) + root (B-1 / 3) = 0, find B / A
16. Math problem arithmetic problem is very simple 200 - 500 = how much is it to solve a good mathematical answer
17. Mathematical problems (super simple) 4 1 4 1 - + - =? -* - =? 7 3 7 3 How much is 4 / 7 times 1 / 3?? 4 out of 7 plus 1 out of 3 = how much??
18. (-5p)*2pg=? 2x*5*x=? 1/4m*4n*(-p)=? 6 * 3x divided by 2x * 5 =? 7+m+6+3m=? 8x^+2x+7x^+3x=? Finally, why m + N-M + n = 2n?
19. Ask some math questions (- 5) - (- 2.5) + (- 1 / 2) (- 5 and 1 / 2) - (4 and 4 / 5) + (- 3 and 1 / 5) + + 2 and 1 / 2) (1.7) - absolute value of negative 4.3 + absolute value of negative 1.7 + (- 6.8) 1-0=( ) 0-1=( ） 0-（-2） a-( )=0 -b-( )=0 The number - 3 less than - 6 is
20. A mathematical problem It takes 20 days for a project to be completed by Party A and Party B, 8 days for Party A and 36 days for Party A to complete the rest. If the rest is done by Party B, how many days will it take Please give a detailed algorithm!