If x+1x=3, calculate x2+1x2, x3+1x3 and x4+1x4
If x+1x=3, calculate x2+1x2,x3+1x3 and x4+1x4.
x5+x4+x3+x2+x+1 by x3+1
if xnot=0 x+1/x=2 show
x2+1/x2=x3+1/x3=x4+1/x4