Question

$\underbrace{{Question}{\mathrm{:}}\mathrm{{-}}}$
$यदि \: x = 7 - 4 \sqrt{2} \: हो, तो \: (x + \frac{1}{x} ) \: का \: मान \: कया \: होगा \: ?$
$Please \: help \: dont \: give \: wrong \: answer.$
​

Answer 1

Answer:

put the value of x that is given 7-4√2

Step-by-step explanation:

x+1/x

7-4√2+1/7-4√2

please mark me as brainliest

Answer 2

Answer:

14.

Step-by-step explanation:

Given that:

$x = 7 - 4 \sqrt{3}$

To find:

$the \: value \: of \: (x + \frac{1}{x})$

Solution:

$x + \frac{1}{x} = (7 - 4 \sqrt{3} ) + \frac{1}{7 - 4 \sqrt{3} }$

= $\frac{{\mathrm{(}}\mathrm{{-}}{4}\sqrt{3}{\mathrm{)}}^{2}\mathrm{{+}}{1}}{{7}\mathrm{{-}}{4}\sqrt{3}}$

= $\frac{{\mathrm{49}}\mathrm{{-}}{\mathrm{56}}\sqrt{3}\mathrm{{+}}{\mathrm{48}}\mathrm{{+}}{1}}{{7}\mathrm{{-}}{4}\sqrt{3}}$

= $\frac{{\mathrm{98}}\mathrm{{-}}{\mathrm{56}}\sqrt{3}}{{7}\mathrm{{-}}{4}\sqrt{3}}$

= 14 Ans.

${}^{i \: hope \: its \: help \: you.}$