document.write( "Question 568922: Find the exact values of sin13/6π, cos13/6π, and tan13/6π.\r
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document.write( "Just not sure what method to use to solve this~
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document.write( "Thanks :) \n" );
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Algebra.Com's Answer #367177 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Find the exact values of sin13/6π, cos13/6π, and tan13/6π. \n" ); document.write( "** \n" ); document.write( "(13/6π)=(13π/6)=(12π/6+π/6)=(2π+π/6)\r \n" ); document.write( "\n" ); document.write( ".. \n" ); document.write( "sin(13π/6)=sin(2π+π/6)=sin(π/6)=1/2 \n" ); document.write( "cos(13π/6)=sin(2π+π/6)=cos(π/6)=√3/2 \n" ); document.write( "tan(13π/6)=tan(2π+π/6)=tan(π/6)=√3/3 \n" ); document.write( ".. \n" ); document.write( "you could have use the trig addition formulas for sin, cos and tan, and you would get the same answers. \n" ); document.write( " \n" ); document.write( " |