document.write( "Question 1055474: tanA+cotB/tanB+cotA=tanA*cotB \n" ); document.write( "
\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "We will use the fact that since tangent and cotangent are\r\n" ); document.write( "reciprocals, that their product equals 1:\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Indicate 1's multiplied by the terms on top:\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Substitute the products of a tangent by a cotangent\r\n" ); document.write( "for the 1's: \r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Erase the unnecessary parentheses: \r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Factor tanA*cotB out if the numerator:\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Cancel the tanB+cotA's\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Edwin