Question

try and answer all the stars.




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Answer 1

Answer:

Step-by-step explanation:

First

Assume that 3 minus 5 root 7 is an rational number and compare to a/b

Such that,

3minus5root7=a/b

3=a/b+5root7

3-a/b=5root7

3b-a/b=5root7

And finally our assumption is wrong that 3minus5root7 is an irrational