document.write( "Question 1204613: Rewrite in terms of sin(x) and cos(x).
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Algebra.Com's Answer #840970 by math_tutor2020(3817) $\"\"$ $\"About$

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\n" ); document.write( " $\"sin%28a%2Bb%29+=+sin%28a%29cos%28b%29%2Bcos%28a%29sin%28b%29\"$ One of the many trig identities\r
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\n" ); document.write( "\n" ); document.write( " $\"sin%28x%2B2pi%2F3%29+=+sin%28x%29cos%282pi%2F3%29%2Bcos%28x%29sin%282pi%2F3%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"sin%28x%2B2pi%2F3%29+=+sin%28x%29%28-1%2F2%29%2Bcos%28x%29%28sqrt%283%29%2F2%29\"$ Use the unit circle\r
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\n" ); document.write( "\n" ); document.write( " $\"sin%28x%2B2pi%2F3%29+=+expr%28-1%2F2%29%2A%28sin%28x%29-sqrt%283%29%2Acos%28x%29%29\"$
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