If #x+1/x=sqrt5#, find the value of #x^2+1/x^2#?
2 Answers
Mar 8, 2017
Explanation:
We square both sides.
#(x + 1/x)^2 = sqrt(5)^2#
#x^2 + 2 + 1/x^2 = 5#
#x^2 + 1/x^2 = 3#
Hopefully this helps!
Mar 8, 2017
3
Explanation: