It is known that LG2 = a, Lg3 = B is expressed as LG18 / 25 by a, B

lg18=lg(2*3*3)=lg2+lg3+lg3=a+2b
lg25=lg[10*10/(2*2)]=lg10+lg10-lg2-lg2=2-2a
So LG (18 / 25) = lg18-lg25 = a + 2B - (2-2a) = 3A + 2b-2

RELATED INFORMATIONS

1. Known LG2 = a, Lg3 = B, try a, B for the following logarithm (fast! Thank you! lg（6） log3(4) log2(12) lg(3/2) It's true in brackets
2. Why is the logarithm of LG's 0.00001 equal to - 5?
3. Solving logarithm equation: lgY = (lg0.4 / lg0.5) lgx + lg0.5 Reduced to the format of y = how much x
4. Four times the logarithm of three with LG as the base
5. -What is the logarithm of LG with the base of 0.0000000000002
6. What is the logarithm of LG with base 2 and base 4?
7. Let 0 ＜ a ＜ 1 and f (x) = log logarithm with a as the base (a ^ 2x-2a ^ X-2), then f (x) ＜ the value range of X X X
8. Find the value range of X in log (2-x) (x + 3) Is based on (2-x)
9. How can the logarithm with root 3 minus root 2 as the base 5 be transformed into the logarithm with root 3 plus root 2 as the base 1 / 5?
10. 1. The logarithm of 7 / 48 with 2 as the radical + the logarithm of 12 with 2 as the base minus the logarithm of 42 with 2 as the base 2. (logarithm of base 2 with 3 + logarithm of base 2 with 9) times (logarithm of base 3 with 4 + logarithm of base 3 with 8)
11. It is known that LG2 = A and Lg3 = B. try to use a and B to express the logarithm with 5 as the lower 12
12. What does LG ^ 2 (3) mean? I mean the logarithm of 3 of LG ^ 2 with the base of 10
13. What's the logarithm 10log2^2n+10log3/2=6n+1.8 That's what it says in the book. I majored in communication, but this mathematical problem should not affect the solution What is the ratio of output signal to noise? Then: [S / DQ] DB = 10log3 / 2 (2 ^ 2n) = 10log2 ^ 2n + 10log3 / 2 = 6N + 1.8 [DB]
14. How to multiply two logarithms of the same base
15. How to calculate logarithm?
16. Logarithmic calculation Let log83 = P, log35 = q, then lg5 =?
17. If we know that loga x = 2, logb x = 1, then the logarithm of a (root B3) is? I calculate a = x = B But then I don't know what to do
18. Must the base a in logarithm loga (x) be greater than 0? For example, does the base a have to be greater than 0 in senior high school?
19. F (x) = loga | loga x | (00), that is, X is not equal to 1 and x > 0 （2）loga | loga x|>1 | loga x|
20. When 0 ＜ X & # 171; 0.5 and 4 ＜ loga (x), what is the value range of a