Prove that a+root b is irrational where a and b are rational nos.
(plz it's urgent)
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Very first thing, it will be possible only when b don't have root,that is, √b is irrational
As √b is irrational, so it can't be written in p/q form. This gives that a+√b also can't be written as p/q form
So it is also irrational
As √b is irrational, so it can't be written in p/q form. This gives that a+√b also can't be written as p/q form
So it is also irrational
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