Question

rationalise the denominator 1/3√5​

Answer 1

Answer:

Explanation:

Rationalize the denominator (radicals cannot be in the denominator) by multiplying the numerator and denominator by 3−√5

13+√5

1⋅3−√5(3+√5)(3−√5)

(3+√5)(3−√5)=9−3√5+3√5−√25

9−3√5+3√5−√25=9−5=4

3−√54

Answer 2

$\huge\underline{\overline{\mid{\bold{\red{Question}}\mid}}}$

Rationalize the denominator of

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

$\huge\underline{\overline{\mid{\bold{\green{Answer}}\mid}}}$

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

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

$\frac{ \sqrt{5} }{3 \sqrt{5 \times 5} }$

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

$\frac{ \sqrt{5} }{3 \times 5}$

$\frac{ \sqrt{5} }{15}$

$\huge{\bold{\blue{Hope \ this \ helps \ uh!!!}}}$