Lg5 × LG6 = how much

lg5 ≈ 0.6989
lg6 ≈ 0.7781
therefore
lg5 × lg6 = 0.6989 × 0.7781 ≈ 0.5438
Hope to help you

For real numbers a, B, C, if there are and only two formulas in (1) LG2 = 1-a-c (2) Lg3 = 2a-b (3) LG4 = 2-2a-2c (4) lg5 = a + C (5) LG6 = 1 + a-b-c which are not tenable, then the formula which is not tenable is______ ．

Suppose LG2 = 1-a-c, then LG4 = 2lg2 = 2 (1-a-c) = 2-2a-2c, lg5 = lg102 = 1-lg2 = a + C, then (1) (3) (4) is correct, ∵ there are and only two formulas are not true, ∵ 2 (5) is wrong. So the answer is: (2) (5)

Which is bigger, lg5 / LG6 or lg7 / LG8?

Let f (x) = logx (x-1) = (LN (x-1)) / (LNX) = (LG (x-1)) / (lgx)
Derivation f '(x) = ((LNX / (x-1) - ln (x-1) / x) / (LNX) ^ 2
Because LNX > ln (x-1) x > (x-1), so ((LNX / (x-1) - ln (x-1) / x) > 0
Then the derivative f '(x) = ((LNX / (x-1) - ln (x-1) / x) / (LNX) ^ 2 > 0
So (LNX) = LNX (1)) / (LNX) = LNX
f(6)

RELATED INFORMATIONS

1. The square of (LG6) under LG2 + Lg3 + root sign + lg6-2lg6 =? lg2+lg3+√(lg6)^2+lg6-2lg6= Inside the root sign is (LG6) ^ 2 + lg6-2lg6
2. LG6 + root ((LG6) ^ 2-lg36 + 1) is equal to how much
3. (lg6)²=? lg4+lg9=? Give me a process
4. Calculate lg5 × lg8000 + 3lg & # 178; 2 + lg0.06-lg6
5. M and N are reciprocal, so how much is m divided by 17 of N? What's more
6. M and N are reciprocal to each other. What is m divided by 1 / N?
7. What is the greatest common factor of M divided by N equal to 0.1M and N?
8. Let f (x) = 1 + logx3, G (x) = 2logx2, where x ＞ 0, X ≠ 1, compare the size of F (x) and G (x)
9. How does the image of the function y = log4 | x | change from y = log4x
10. Given the function f (x) = log4 (4 ^ x + 1), let H (x) = log4 (a * 2 ^ x-3a / 4), if the image of function f (x) and H (x) has and only has one common point Find the value range of a
11. Taking logarithm to get derivative Use the logarithmic derivative method to find the derivatives of the following functions y=[(x-5)(x^2+2)^1/5]^1/5
12. How to calculate the logarithm of shared electron pairs First of all, you should learn to analyze the structure of compounds Compounds are generally divided into: covalent compounds, ionic compounds A covalent bond of a covalent compound forms a common electron pair For example: H2O, water, H need 2 electrons to be stable, O need 8 electrons to be stable One h takes out one electron, O takes out two electrons, and combines with the electrons taken out of two H atoms to form covalent bonds. There are two covalent bonds, that is, there are two common electron pairs. Look, I still don't understand. Help me
13. Since the π bond should be considered in the calculation of lone pair electron logarithm of 03 central atom, how to determine whether there are π bonds such as ClO2 and O3 in the calculation of lone pair electron
14. How can 2 ^ 2x-2 make the logarithm X-1 4 ^ X-1?
15. Find the range of function y = ㏒ 2 (3x & # 178; - 5x + 17)
16. Given f (x) = 2 + log3x (1 ≤ x ≤ 9), the maximum and minimum values of the function g (x) = [f (x)] 2 + F (x2) are obtained
17. If you can't see the website, please see exercise 2.8 on page 85 of senior one Why can X be equal to 1? In this case, the number in the root sign = 0 is not meaningless In the fourth question, a and B belong to (- 1,1), which seems to have nothing to do with the meaning? I can't understand the second and third questions of question 5 I have a poor foundation and can't understand in class a. B belongs to (- 1,1). Does it mean a = - 1, B = 1 or a = 1, B = - 1
18. Please explain in detail why this problem should be calculated in this way? In order to buy a house, Mr. Zhang borrows from the bank. The amount of loan is d yuan. He is prepared to repay P yuan every month. The monthly interest rate is r M=logP-log(P-DxR)/log(1+R) On the first floor, I don't understand how you calculate these two formulas: the sum of principal and interest of repayment is p (1 + R) ^ (m-1) + P (1 + R) ^ (m-2) +... + P = P [(1 + R) ^ M-1] / R, Let D (1 + R) ^ m = P [(1 + R) ^ M-1] / R, We get (1 + R) ^ m = P / (P-D * r),
19. （log2 3+log4 27）(log3 4+log27 16)
20. If LG2 = a, what is log2 (5)?