Question

show that root 7 minus 3 is irrational number

Answer 1

Let us assume that root 7 - 3 is rational.
=>root7  - 3=a/b
root 7= a/b -3
a/b and -3 are rational numbers but root 7 is irrational.
It is a contradiction
Therefore , our assumption that root 7 - 3 is rational is false. 
Therefore, root 7 - 3 is irrational
Hence proved.

Answer 2

Answer:

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