निम्नलिखित के हरो का परिमेयकरण कीजिए :
(i) `(1)/(sqrt(7))`
`(ii) (1)/(sqrt(7)-sqrt(6))`
(iii) `(1)/(sqrt(5)+sqrt(2))`
(iv) `(1)/(sqrt(7)-2)`

Answer

(i) `(sqrt(7))/(7)" "` (ii) `sqrt(7)+sqrt(6) " " ` (iii) `(sqrt(5)-sqrt(2))/(3) " " ` (iv) ` (sqrt(7)+2)/(3)`