Question

rationalise : 1/ root5 - root 4​

Answer 1

$\frac{ 1}{(\sqrt{5} - \sqrt{4})} \\= \frac{ (\sqrt{5} + \sqrt{4})}{(\sqrt{5} - \sqrt{4})( \sqrt{5} + \sqrt{4})} \\= \frac{ (\sqrt{5} + \sqrt{4})}{(\sqrt{5})^{2} - (\sqrt{4})^{2}} \\= \frac{ (\sqrt{5} + \sqrt{4})}{5 -4} \\= \frac{ (\sqrt{5} + \sqrt{4})}{1} \\= \sqrt{5} + \sqrt{4}$

Therefore.,

$\red{\frac{ 1}{(\sqrt{5} - \sqrt{4})}}\\\green { = </p><p>\sqrt{5} + \sqrt{4}}$

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Answer 2

Step-by-step explanation:

Hello ! mates here's Ur ans..

Given;

1/√5-√4 × √5+√4/√5+√4.

= √5+√4/(√5)² -(√4)²

= √5 + √ 4 / 5-4

= √5+√4/1= √5+√4(ans)..

hope, it's helpful..thnx.. follow.. Mark as brainlist..

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