Vosnian

This page lists questions and answers that were posted by visitors named Vosnian.

Questions

The following questions were asked by visitors named Vosnian.

Answers

The following answers were posted by visitors named Vosnian.

r ^ 2 - 1 = ( r + 1 ) * ( r - 1 ) ( r ^ 2 - 1 ) / ( r + 1 ) ^ 2 = [ ( r + 1 ) * ( r - 1 ) ] / [ ( r + 1 ) * ( r + 1 ) ] = ( r - 1 ) / ( r + 1 )
13 years ago