Question

If x=3+√5/2 then find x+1/x

Answer 1

Answer:

• first we find the value of 1/x.
• 1/x=1/3+√5/2 (rationalize)
• 1/3+√5/2×3-√5/2/3-√5/2
• 2(3-√5/2)/13= 6-2√5/2 this is the value of 1/x.
• 6-2√5/2/13+3+√5/2=45+11√5/2/13ans