document.write( "Question 231967: Use the sum or difference identities to find the exact value of sin 105 degrees. \n" ); document.write( "

Algebra.Com's Answer #171531 by Alan3354(69443) $\"\"$ $\"About$

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Use the sum or difference identities to find the exact value of sin 105 degrees.
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\n" ); document.write( "sin(A+B) = sin(A)cos(B) + sin(B)cos(A)
\n" ); document.write( "sin(105) = sin(45 + 60)
\n" ); document.write( "= $\"%28sqrt%282%29%2F2%29%2A1%2F2+%2B+%28sqrt%283%29%2F2%29%2Asqrt%282%29%2F2\"$
\n" ); document.write( "= $\"sqrt%282%29%2F4+%2B+sqrt%286%29%2F4\"$
\n" ); document.write( "= $\"%28sqrt%282%29+%2B+sqrt%286%29%29%2F4\"$ \r
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