document.write( "Question 1069920: Pls help me Proof: Sin(A+B)= SinA CosB+ CosA SinB \n" ); document.write( "
Algebra.Com's Answer #685023 by ikleyn(52884)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "See the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Addition and subtraction formulas \r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lesson is the part of this online textbook under the topic
\n" ); document.write( "\"Trigonometry. Formulas for trigonometric functions\".\r
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