given, x+1x=4
Squaring both sides,
=(x+1x)2=42
=x2+(1x)2+2(x)(1x)=16
=x2+1x2+2=16
=x2+1x2=14
If x+1x=11, find the value of x2+1x2.
If x−1x=−1, find the value of x2+1x2.
If (x+1x)=4, find the value of (i) If (x2+1x2) and (ii) (x4+1x4)