Question

state weather the following number are rational or not (2+√2)2​

Answer 1

Answer:

Heya mate !!!! It is an Irrational number because when u expand that term uh will get the same

Step-by-step explanation:

PLZ REFER THE ABOVE ATTACHMENT !!!

Answer 2

Let 4+2√2 be a rational number

p/q=4+2√2

p/q -4=2√2

p-4q/q=2√2

since p and q are co-prime

therefore 2√2 is rational number

this contradicts the fact that 4+2√2 is a rational number

but this contradiction has arisen due to our wrong assumption

therefore 4+2√2 is ir-rational number