Question

(underroot3+underroot5)square is it ration no.​

Answer 1

( √3 + √5 ) 2

( √a + √b ) 2 = (√a)2 + (√b)2 + 2.√a.√b

(√3)2 + (√5)2 + 2 × √3 × √5

3 + 5 + 2 × √15

8 + 2 × √15

10√15

Answer 2

no it irrational as irrational no. when added to irrational no. then the answer is also irrational .

i.e:

$\sqrt(3) + \sqrt(5) = irrartional \: number$