document.write( "Question 152070This question is from textbook elementary and intermediate algebra concepts and applications
\n" ); document.write( ": I'm not sure how to do these can I please get help?\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2. a) Select any irrational number, and turn it into a rational number by
\n" ); document.write( " using addition, subtraction, multiplication, division, or exponentiation. \r
\n" ); document.write( "\n" ); document.write( "b) Select any imaginary number (of the form \"a + bi\" where a and b are non-zero real numbers), and turn it into a real number by using addition, subtraction, multiplication, division, or exponentiation.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #112556 by orca(409)\"\" \"About 
You can put this solution on YOUR website!
a)
\n" ); document.write( "choose an arbitrary irrational number, say
\n" ); document.write( "\"3%2Bsqrt%282%29\"
\n" ); document.write( "To turn it into a rational number, we simply multiply it by
\n" ); document.write( "\"3-sqrt%282%29\"
\n" ); document.write( "The result is
\n" ); document.write( "\"%283%2Bsqrt%282%29%29%283-sqrt%282%29%29=3%5E2-%28sqrt%282%29%29%5E2=9-2+=7\"
\n" ); document.write( "b)
\n" ); document.write( "choose an imaginary irrational number, say
\n" ); document.write( "\"2%2Bi\"
\n" ); document.write( "To turn it into an imaginary number, we simply multiply it by
\n" ); document.write( "\"2-i\"
\n" ); document.write( "The result is
\n" ); document.write( "\"%282%2Bi%29%282-i%29=2%5E2-i%5E2=4-%28-1%29=4%2B1=5\"\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );