Question

1 upon 7+3√2 plsss answer this​

Answer 1

Answer:

1/7+3√2

=1/7+3√2× 7-3√2/7-3√2

=7-3√2/ (7+3√2)(7-3√2)

=7-3√2/(7)^2-(3√2)^2

=7-3√2/49-18

=7-3√2/31

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Answer 2

QUESTION

1 UPON 7+3√2

So we have to rationalise the denometors.

SOLUTION :

$\frac{1}{ \sqrt[7 + 3]{2} }$

1/ 7+3√2 × 7-3√2/7-3√2

= 7-3√2 / 7^² - (3√2)²

= 7-3√2 / 7² - 3²×2

= 7-3√2 / 49 -18

= 7-3√2/31

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