document.write( "Question 123127: If f(x)= 1/(2x) and g(x) = 3+x find (and simplify) the defining equation of the composition function f\circle g. \n" ); document.write( "

Algebra.Com's Answer #90370 by Earlsdon(6294) $\"\"$ $\"About$

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Given:
\n" ); document.write( " $\"f%28x%29+=+1%2F2x\"$ and $\"g%28x%29+=+3%2Bx\"$ , find:
\n" ); document.write( " $\"%28f%5Bo%5Dg%29%28x%29\"$ this can also be written:
\n" ); document.write( " $\"f%28g%28x%29%29\"$
\n" ); document.write( " $\"f%28g%28x%29%29+=+f%283%2Bx%29\"$
\n" ); document.write( " $\"f%283%2Bx%29+=+1%2F2%283%2Bx%29\"$
\n" ); document.write( " $\"f%283%2Bx%29+=+1%2F%286%2B2x%29\"$ , so...
\n" ); document.write( " $\"%28f%5Bo%5Dg%29%28x%29+=+1%2F%286%2B2x%29\"$ \n" ); document.write( "

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