document.write( "Question 588973: sin^2 12 degree+sin^2 40 degree+sin^2 50 degree+sin^2 78 degree \n" ); document.write( "
Algebra.Com's Answer #374703 by Alan3354(69443)\"\" \"About 
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sin^2 12 + degree+sin^2 + 40 degree+sin^2 + 50 degree+sin^2 + 78 degree
\n" ); document.write( "= sin^2 12 + cos^2(12) + sin^2 40 + cos^2(40)
\n" ); document.write( "= 1 + 1
\n" ); document.write( "= 2\r
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