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

You are not logged in. #2 20130106 20:20:11
Re: Complex no.Let the roots be , , , so . Then: So (i) and (iii) are true. We have so is true. The others are not necessarily true: e.g. has complex roots and . Last edited by scientia (20130118 22:43:43) #3 20130107 17:35:53
Re: Complex no.(B) When a=c we obtain ax²+bx+a= 0 which has roots Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional). LaTex is like painting on many strips of paper and then stacking them to see what picture they make. 