document.write( "Question 100106: Determine if sqrt 77 and sqrt(-)are irrational or rational. \r
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document.write( "I said that 77 was because it could be 77/1, however that would only be 77, so now I have changed my mind. I say sqrt77 is irrational. \r
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document.write( "Sqrt(-)is not a real number, so haw can it be rational, So I say it is also irrational. Am I correct or no? \r
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document.write( "I completely do not understand the irrational and rational problems. I have read all that has been answered on here trying to comprehend the rules of them. This is not a problem out of my book, however I have enclosed the book I have been working from. \n" );
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Algebra.Com's Answer #72879 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sqrt(77) is irrational because 77 is not a perfect square. \n" ); document.write( "sqrt(-1) is neither rational or irrational; it is imaginary. \n" ); document.write( "------------------- \n" ); document.write( "The Real Numbers set is made up of the rational numbers and \n" ); document.write( "the Irrational numbers. Rationals are numbers that can be \n" ); document.write( "written as a ratio of two integers such as 3, 2/3, 5%, 0.123 \n" ); document.write( "etc. \n" ); document.write( "Irrationals cannot be written as a ratio of integers such as \n" ); document.write( "sqrt2, cube root of 5, pi, 0.12345678.....endlessly \n" ); document.write( "------------ \n" ); document.write( "Another way to describe irrational numbers is that they do not \n" ); document.write( "have a repeating decimal form. So 0.292929292...is rational \n" ); document.write( "but 0.299229992992229999922....is irrational \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |