Question

Which of the following is simplest rationalising factor of √ 75 *

√75
or
√25
or
√5
or
√3

​

Answer 1

Answer:

$\huge \boxed{ \sqrt{75} \: is \: the \: }$

$\huge \red{rationalising}$

$\huge \blue{ factor}$

$\huge \underline{ proof }$

$\sqrt{75} \times \sqrt{75}$

$= ( { \sqrt{75} })^{2}$

$= 75$

$\huge \: hence \:proved$

$\huge \blue{note : - - }$

$we \: can \: cancel \: root \: terms (\sqrt{x} ) \: \\ when \: there \: is \: square$

$\huge \bold \green{example : - }$

$\huge ( { \sqrt{75} }^{2} ) = \sqrt{75 \times 75}$

$\huge \boxed{= 75}$

$\sf\bigstar \orange{hope\: this \:helps\: you \: follow \: me}$