document.write( "Question 1204215: If limt(e^(ln(ax)) × tan(2a/x))= 8 ' find value of a ? \n" ); document.write( "
Algebra.Com's Answer #840322 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "given:\r
\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3E-infinity%2C%28e%5E%28ln%28ax%29%29%2Atan%28%282a%29%2Fx%29%29%29=+8\"\r
\n" ); document.write( "\n" ); document.write( "manipulate left side\r
\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3E-infinity%2C%28e%5E%28ln%28ax%29%29%2Atan%28%282a%29%2Fx%29%29%29\".........since \"e%5E%28ln%28ax%29%29=ax\", we have\r
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\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3E-infinity%2C%28ax%2A+tan%28%282a%29%2Fx%29%29%29\"\r
\n" ); document.write( "\n" ); document.write( "then\r
\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3E-infinity%2C+ax%2A+tan%28%282a%29%2Fx%29%29=++2a%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "equal it to right side\r
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\n" ); document.write( "\n" ); document.write( " \"2a%5E2=8\"\r
\n" ); document.write( "\n" ); document.write( " \"a%5E2=4\"\r
\n" ); document.write( "\n" ); document.write( "\"a=2\" =>solution\r
\n" ); document.write( "\n" ); document.write( "\"a=-2\" =>not a solution\r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3E-infinity%2C%28e%5E%28ln%282x%29%29%2Atan%28%282%2A2%29%2Fx%29%29%29=+8\"
\n" ); document.write( "\"8=+8\"\r
\n" ); document.write( "\n" ); document.write( "\"lim%28x-%3Einfinity%2C%28e%5E%28ln%282x%29%29%2Atan%28%282%2A2%29%2Fx%29%29%29=+8\"
\n" ); document.write( "\"8=+8\"\r
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