Question

Prove that √3 + √5 is irrational.

Answer 1

let root 3 + roof 5 be rational

root 3 + root 5 = P/q

(root 3 + root 5) sq=(P/q)sq

3 +5 + 2 root 15 = P sq/q Sq

root I5 = (Psq / qsq -7) 1/2

RHS is rational as all are integers
⇒ LHS is also rational but root 15 is irrational

⇒ root3 + root 5 is irrational

Answer 2

Answer:

Step-by-step explanation:look at the pic for answer.

Hope It Helps