Question

prrove that 4+2root1 is irrational also proove that root 11 is irrational​

Answer 1

Answer:

(I) Let us assume it to be a rational number

4+2√1 = a/b [b not equal to 0, where a a and b co-primes]

2√1 =a/b-4

√1 =a/2b-4/2

a/2b is and rational .so,3/2 is also rational

But √1 is a irrational number

So, our assumption is false

4+2√1 is a irrational number

Step-by-step explanation:

(ii) √11