1.

If x=4 +√2 then find the value of + 1/X​

Answer»

Step-by-step EXPLANATION:

X = 4 + √2

then 1/x = 1/4+√2

on RATIONALISING the denominator

(1/4+√2 ) × ( 4-√2 / 4-√2)

= 4-√2/ 4² - (√2)²

= 4-√2 / 16 - 2

= 4-√2/14

1/x = (4-√2)/14



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