document.write( "Question 30908: perform the indicated operation and simplify: \r
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document.write( " 1+3i/1-2i \n" );
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Algebra.Com's Answer #20059 by kietra(57)![]() ![]() ![]() You can put this solution on YOUR website! (1+3i)/(1-2i) \n" ); document.write( "In imaginary numbers, there's a rule that you can never have an i in the denominator. To get rid of that, you multiply by the inverse of (1-2i) which is (1+2i) in both the denominator and numerator. You must use FOIL to multiply the numbers. \n" ); document.write( "(1+3i)/(1-2i)* (1+2i)/(1+2i). Multiply numerators together and denominators. \n" ); document.write( "(1+3i)(1+2i)/(1-2i)(1+2i) \n" ); document.write( "(1 + 2i + 3i + 6i^2)/(1 -2i + 2i - 4i^2) \n" ); document.write( "(1 + 5i + 6(-1))/(1 -4(-1)) \n" ); document.write( "(1-6 + 5i)/(1 + 4) \n" ); document.write( "(-5 + 5i)/(5) =now reduce \n" ); document.write( "5(-1 + i)/5 \n" ); document.write( "-1 + i \n" ); document.write( " \n" ); document.write( " |