if x=4 +√2 then find the value of + 1/X
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Answered by
3
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
Answered by
1
Answer:
X=4+√2
1/X=1/4+√2
rationalising
1/4+√2×4-√2/4-√2
4-√2/4^2-√2^2
4-√2/16-2
4-√2/14=1/X
X+1/x=4+√2+4-√2/14
mark brainliest
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