document.write( "Question 607933: Can someone PLEASE help me with this problem? Thank you!\r
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document.write( "If tan(theta)=9/8 and cot(phi)=3/5, find the exact value of sin(theta+phi).\r
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Algebra.Com's Answer #382974 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! sin(theta+phi) = sin(theta) * cos(phi) + cos(theta) * sin(phi)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "you can use Pythagoras to find the sin and cos of theta and phi \n" ); document.write( "___ the tan and cot functions give you two of the sides of right triangles, use Pythagoras to find the hypotenuse \n" ); document.write( " |