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I need help with complex numbers. We have been working on them all week, but it's a little hard to understand. Will you help me?\r
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\n" ); document.write( "\n" ); document.write( "see if this helps at all:
\n" ); document.write( "a real number is any number that you usually work with such as:
\n" ); document.write( "integers (..., -3, -2, -1, 0, 1, 2, 3,...),
\n" ); document.write( "or rational numbers (numbers that can be expressed as a fraction,
\n" ); document.write( "such as 3/4 or 1/2 or 1/3),
\n" ); document.write( "or irrational numbers (such as pi, e, sqrt(2), sqrt(3))
\n" ); document.write( "a complex number is different from a real number,
\n" ); document.write( "it is of form a + bi where a and b are real numbers,
\n" ); document.write( "you may also see this expressed as x + yi where x and y are real numbers
\n" ); document.write( "also the imaginary number i is the square root of -1 and i^2 = -1
\n" ); document.write( "addition:
\n" ); document.write( "(a + bi) + (c + di) = a + c + (b + d)i
\n" ); document.write( "subtraction:
\n" ); document.write( "(a + bi) - (c + di) = a - c + (b - d)i
\n" ); document.write( "multiplication (here you will have to use FOIL or First Outer Inner Last):
\n" ); document.write( "(a + bi)(c + di) = ac + adi + bci + bdi^2 = ac - bd + (ad + bc)i
\n" ); document.write( "division (here you will have to multiply numerator and denominator
\n" ); document.write( "by the conjugate (a + bi conjugate is a - bi) of the denominator):
\n" ); document.write( "(a + bi)/(c + di) = ((a + bi)(c - di))/((c + di)(c - di))
\n" ); document.write( "(a + bi)/(c + di) = (ac - adi + bci - bdi^2)/(c^2 - d^2*i^2)
\n" ); document.write( "(a + bi)/(c + di) = (ac + bd + (bc - ad)i)/(c^2 + d^2)
\n" ); document.write( "(a + bi)/(c + di) = (ac + bd)/(c^2 + d^2) + ((bc - ad)/(c^2 + d^2))i\r
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