Question

prove that /5+4is irrational (SOIVE In5-6 steps)​

Answer 1

Let us assume that √5+4 is rational

√5+4=a/b

a=√5+4b

√5= a/4b

Since a & b are integers a/4b is rational and √5 is also rational

hence our assumption is wrong

√5+4 is irrational