Question

If x=2+√3, find the value of x+1/x​

Answer 1

Answer:

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Answer 2

Answer:

4

Step-by-step explanation:

X= 2+√3

1/X=1/(2+√3)=(2-√3)/(2+√3)(2-√3)

                    =(2-√3)/(2^2 -√3^2)                  a^2 +b^2  = (a+b) (a-b)

                    = (2-√3)/ (4-3)

                      =  2-√3

X+ 1/X = 2+√3 + 2-√3 =4