Question

Rationalising factor for the denominator of the expression
1/
3+v5
is​

Answer 1

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$\frac{1}{3+\sqrt{5}}$

$\frac{1}{3+\sqrt{5}}$$\times$$\frac{3-\sqrt{5}}{3-\sqrt{5}}$

= $\frac{3-\sqrt{5}}{3^2-\sqrt{5}^2}$

= $\frac{3-\sqrt{5}}{9-5}$

= $\frac{3-\sqrt{5}}{4}$ is ur answer