document.write( "Question 1157185: Find the inverse of the function
\n" ); document.write( "(a) f(x)= x^2+2x-1, x>0 \n" ); document.write( "

Algebra.Com's Answer #780002 by josgarithmetic(39625) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"system%28y%5E2%2B2y-1=x%2Cy%3E0%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%28y-1%29%5E2=x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y-1=0%2B-+sqrt%28x%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=1%2B-+sqrt%28x%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"f%5E-1%28x%29=1%2Bsqrt%28x%29\"$ , also $\"f%5E-1%28x%29%3E=1%3E0\"$ \n" ); document.write( "

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