6 November 2015

• curprev 01:0301:03, 6 November 2015 Timneh talk contribs 435 bytes +435 Created page with "1) <math>\tfrac{13}{16}</math> 2) <math>ab+ac+bc+a+b+c</math> 3) <math>2</math> 4) <math>\{1,2,5\}</math> 5) <math>18</math> 6) (a) <math>\frac{(2^{n+1}-1)(3^{n+1}-1)}{2}..."