document.write( "Question 1193960: For positive acute angles A and B,, it is known that sin A=9/41 and cos B=3/5 \r
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document.write( " Find the value of cos (A-B) in simplest form. I know that sin A =9/41, 40/41 by drawing a triangle for help me to understand how to set up.
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document.write( " Robbin \n" );
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Algebra.Com's Answer #826026 by ikleyn(52832)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Find many similar solved problems of this type in the lesson\r \n" ); document.write( "\n" ); document.write( " - Evaluating trigonometric expressions \r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Consider them as your TEMPLATES and solve your problem in the same way.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Learn the subject and the solution method from there.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |