Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20051112 06:05:32
Re: logarithms...1) lg a + lg b ≡ lg ab, so lg (1x) + lg(1+x) = lg (1x)(1+x) = lg (1  x²). Why did the vector cross the road? It wanted to be normal. #4 20051112 08:33:34
Re: logarithms...For 3, I worked it out to be 16 but typed 12 by mistake. I've edited it, so it's right now. Why did the vector cross the road? It wanted to be normal. #6 20051112 10:33:47
Re: logarithms...Using log a + log b = log ab, log6 2 + log6 3 = log6 6. Why did the vector cross the road? It wanted to be normal. 