Proove 3+2√5 is irrational
Answers
Answered by
0
Answer:
as root 5 is given in the ques. so the ans will be irrational
Answered by
1
Answer:
by contradiction meathord let us assume that 3+2root 5 is rational
3+2root5 = a /b
2root 5 = a/b-3
2root5 = (a-3b)/5
root5 = (a-3b)/5×2
root5 = (a-3b)/10
as we know a rational term cant be equal to irrational and here root 5 is irrational
thus, 3+2root5 is irrational
Similar questions