Question

show that 3+√5 is irrational​

Answer 1

Answer:

see brother

Step-by-step explanation:

let us assume that 3+underroot5 is rational

now we can write 3+under root 5 = a/b , where a and b" are coming prime.

so... 3+under root 5 = a/b

under root 5 = a/b-3

under root 5 = a-3b/b

so, a-3b/b is rational (because a and b are integer)

then, under root 5 is also rational

but we know that underroot 5 is irrational

so the assumption that we take is incorrect

therefore 3+under root 5 is irrational.

.....thank you

Answer 2

• I think it is helpful to you