Question

If alpha and beta are the zeroes of p[x]=x2 + x-1,then find 1/alpha+1/beta

Answer 1

m representing here alpha by A and beeta by B , so we have

A+B=-1,

AB=-1,


then

1/A + 1/B =(B+A)/AB,

1/A + 1/B=(-1)/-1=1

Answer 2

1A PLUS 1B..........equas to BA