Question

If x =√7+√6 upon √7-√6 then find the value of (x+1/x)

Answer 1

Step-by-step explanation:

first rationalise x=√7+√6/√7-√6×√7+√6/√7+√6

(√7+√6)^2/7-6

7+6+2√42/1

x=13+2√42

similarily

factorise 1/x

u will get

1/x= 13-√42

x+1/x=13+√42+13-√42

x+1/x=26