document.write( "Question 1104562: x = cos(1 + i)
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Algebra.Com's Answer #720373 by rothauserc(4718) $\"\"$ $\"About$

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x = cos(1 + i)
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\n" ); document.write( "Use the definition for the cosine of a complex number
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\n" ); document.write( "x = (e^(-1+i)/2) + (e^(1-i)/2)
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\n" ); document.write( "x is approximately 0.833730 - 0.988898i
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