document.write( "Question 1176723: Angles A and B are acute angles such that tanA + tanB + (tanA)(tanB) = 1 . If A-B = 41 degrees, find the measure of angle A. \n" ); document.write( "
Algebra.Com's Answer #804171 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "A student fairly early in his study of trigonometry should recognize the terms in this equation as those in the formula for tangent of the sum of two angles: \n" ); document.write( " \n" ); document.write( "Manipulate the given equation to put it in that form: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Since the tangent of 45 degrees is 1, this tells us A+B=45. \n" ); document.write( "But that together with the given that A-B=41 allows us to solve that pair of equations to find the measure of angle A. \n" ); document.write( "I leave that last little bit for you.... \n" ); document.write( " \n" ); document.write( " |