prove that root 3 minus root 2 is irrational
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Answered by
43
to prove √3 -√2 is irrational
we know that √3 and √2 are irrational numbers and if we subtract an irrational number from an irrational number then the answer is also irrational
hence proved.
we know that √3 and √2 are irrational numbers and if we subtract an irrational number from an irrational number then the answer is also irrational
hence proved.
Answered by
98
hey
here is your answer
let 3-√2 be a rational number
hence,3-√2= a/ b , where a and b are integers and b is not equal to 0...
3-√2= a/b
√2= a/b -3
= √2= a-3b/b
here a-3b/b are rational number as a and b are
integers
but √2 is irrational number
therefore , the contradiction we suppose is wrong ,
hence, 3-√2 is irrational number ...
hope it will help you
thanx
here is your answer
let 3-√2 be a rational number
hence,3-√2= a/ b , where a and b are integers and b is not equal to 0...
3-√2= a/b
√2= a/b -3
= √2= a-3b/b
here a-3b/b are rational number as a and b are
integers
but √2 is irrational number
therefore , the contradiction we suppose is wrong ,
hence, 3-√2 is irrational number ...
hope it will help you
thanx
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