Question

show that 5 + root 5 into5 minus root 5 is a rational number

Answer 1

✔✔heya here is ur answer!!

THANK YOU ✌✌

HOPE IT HELPS YOU ☺☺

Answer 2

heya....

Here is your answer....

$(5 + \sqrt{5} )(5 - \sqrt{5} )$


$(a + b)(a - b) = {a}^{2} - {b}^{2}$


${5}^{2} - { \sqrt{5} }^{2}$


$25 - 5$


$20$

Therefore
$(5 + \sqrt{5} )(5 - \sqrt{5} )$

is a rational number.

It may help you....☺☺