Question

If x = (2+√5) , find the value of x ki power 2 + 1/x ki power 2

Answer 1

Answer:

2+(1/x)*2=0

2x*2 +1 /x*2=0 (by takingLCM)

2x*2 +1=x*2

2x*2 --x*2=1

x=_/1

so x=1