document.write( "Question 955814: If sin theta=3/10,theta in quadrant II,find the exact value of
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document.write( "(a)cos theta (b)sin(theta+pi/6) (c)cos(theta-pi/3) (d)tan(theta+pi/4)\r
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document.write( "Help me please!!! \n" );
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Algebra.Com's Answer #583908 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! If sin theta=3/10,theta in quadrant II,find the exact value of \n" ); document.write( "(a)cos theta \n" ); document.write( " \n" ); document.write( "--> \n" ); document.write( "cosine is negative in Q2 \n" ); document.write( "-------------------------- \n" ); document.write( " (b)sin(theta+pi/6) \n" ); document.write( "sin(A+B) = sin(A)cos(B) + sin(B)cos(A) \n" ); document.write( "---------------- \n" ); document.write( "(c)cos(theta-pi/3) \n" ); document.write( "Look up \"half angle formulas\" on Wikipedia. \n" ); document.write( "It's explained in detail there. \n" ); document.write( " (d)tan(theta+pi/4) \n" ); document.write( "tan = sin/cos \n" ); document.write( "Look up \"half angle formulas\" on Wikipedia. \n" ); document.write( "It's explained in detail there. \n" ); document.write( " |