Prove that 13√5/7 is an irrational number
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Answered by
21
HEY MATE !!!
thus it can be expressed in the form of
where p and q are integers and q not equal to 0
thus,
Irrational = Rational
since this can not be true
this contradiction has arised due to the wrong assumption thus, 13√5 / 7 is irrational
HENCE PROVED
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Answered by
3
let us think that it is rational no.
so it will be in the form of p/q, where q is not equal to 0 n q n p are co primes
so we can write it
p/q=13 \sqrt{5} \7
taking 7 n 13 on LHS we are left with root 5
the p/q×7/13 is a rational no. so root 5 will also be rational
but root 5 is an irrational . so our assumption was wrong that 13root5/7 is rational .
so it is irrational.
hope it will help u .....plz
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