Question

prove that root 3 + root 5 is an irrational number
$(a - b)2 = a2 + b2 - 2b$
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

let root 3 +root 5 be rational

root 3 + root 5= a

squaring both the sides

(root 3 + root 5) square = a square

3+5+2 root 15 = a square

8+ 2 root 15 = a square

this cann't be possible.

hence our assumption is wrong

thus root 3 + root 5 is irrational