document.write( "Question 275548: This is my last Algebra 2 problem and I have no idea how to solve this. The problem is to simplify -1/(3+i) using imaginary numbers. To me it appears that this is as simplified as it can get.\r
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document.write( "Thank you.
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document.write( "Mark \n" );
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Algebra.Com's Answer #200951 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! simplify -1/(3+i) using imaginary numbers \n" ); document.write( "------------- \n" ); document.write( "\"Simplified\" in this case means \"no imaginary numbers in the denominator\". \n" ); document.write( "---------------------- \n" ); document.write( "So, multiply numerator and denominator by the conjugate of 3+i, which is 3-i. \n" ); document.write( "--- \n" ); document.write( "You get: \n" ); document.write( "[-1(3-i)]/[(3+i)(3-i)] \n" ); document.write( "---- \n" ); document.write( "The form in the denominator is (a+b)(a-b) \n" ); document.write( "That product is always a^2 - b^2 \n" ); document.write( "--------------------- \n" ); document.write( "So for your problem you get: \n" ); document.write( "[(-3+i)]/[3^2-(i)^2] \n" ); document.write( "--- \n" ); document.write( "= (-3+i)/(9 + 1) \n" ); document.write( "--- \n" ); document.write( "= (-3+i)/10 \n" ); document.write( "================= \n" ); document.write( "That is the simplified form. \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |