To rationalise the denominator of

MATHEMATICS · Single correct · CBSE · Mathematics · Real Numbers · Real Numbers

Problem

\dfrac{1}{5-\sqrt{2}}

, the expression should be multiplied by (a)

\sqrt{2}-5

(b)

5+\sqrt{2}

(c)

5-\sqrt{2}

(d)

(5-\sqrt{2})^{2}