Question

show that 2 + root 7 is an irrational number

Answer 1

Answer:

be a rational number which can be expressed in the form of p/q where p and q are integers, relatively prime and q is not equal to zero. is a rational number which is not

Answer 2

Answer:

let 2+√7 be rational

2+√7=p

√7=p-2

we know that p is a rational number

therefore p-2 is rational and thus √7 is also rational which contradicts that √7 is irrational

therefore our assumption is wrong

2+√7 is irrational