You can
put this solution on YOUR website!we presume the problem is ,,,1/x<=x^2-1
.
by inspection ,,,,
.
if x=0,,,1/x is undefined
.
if x=1,,,,,1<=1-1,,,1<=0,,,not true
.
if x=2,,,,1/2<=2^2-1,,,,,1/2<=3,,,ok
.
appears to be x>1
.
to math calc
.
1/x <=(x^2-1)
.
mult by x
.
1<=x^3 -x
.
take log's
.
log1<=logx^3-logx
.
0<=3logx-1logx
.
0<=2logx
.
0<=logx
.
x>=1,,,,,checking x=1,,not true ,,,therefore x>1
.
.
.