Question

Root 3-2root7 is an irrational number

Answer 1

root 7 be an rational number...

and we know that rational number is in d form of p/q

so root 7=p/q...

squaring on both sides...

Root7sq= p^/q^

7q^=p^

7 is divisible Wid p and as well as p^
it is a contradiction..
and root 7 is irrational