document.write( "Question 1098093: Use sum and difference identities to find the exact value of sin 15 degrees (two angles given are 45 degrees and 60 degrees.) \n" ); document.write( "

Algebra.Com's Answer #712550 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Use sum and difference identities to find the exact value of sin 15 degrees (two angles given are 45 degrees and 60 degrees.)
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sin (A - B) = sin A cos B - cos A sin B
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document.write( "sin (60 - 45) = sin 60 cos 45 - cos 60 sin 45
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document.write( "If you don't know these ratios, you need to look them up on the UNIT CIRCLE chart! \n" );
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