document.write( "Question 974933: I fogot whole concept of real no of mie 9 standard ...i m in +2 bt i have a assignment to solve of my sis ...plz help me out.... Is 3√18 a rational or irrational no?
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Algebra.Com's Answer #596744 by farohw(175)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Rational numbers are any real numbers that can be written as a fraction where the denominator is not equal to zero. For example, 0.6 can be written as 3/5 or 4 can be written as 4/1. Square roots are irrational numbers because they cannot be expressed as simple fractions unless they are perfect squares \"sqrt%289%29+=+3\".\r
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