document.write( "Question 1153565: SIMPLIFY 1/(csc(A-1)) + 1/(csc(A+1)) \n" ); document.write( "
Algebra.Com's Answer #775817 by MathLover1(20855)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "\"1%2F%28csc%28A-1%29%29+%2B+1%2F%28csc%28A%2B1%29%29\".......use identity \"csc%28x%29=+1%2Fsin%28x%29\"\r
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\n" ); document.write( " =\"1%2F%281%2Fsin%28A-1%29%29+%2B+1%2F%281%2Fsin%28A%2B1%29%29\"\r
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\n" ); document.write( "\n" ); document.write( " =\"sin%28A-1%29+%2B+sin%28A%2B1%29\"...........use identity \"sin%28A-1%29=sin%28A%29+cos%281%29+-+cos%28A%29+sin%281%29\" and \"sin%28A%2B1%29=sin%28A%29+cos%281%29+%2B+cos%28A%29+sin%281%29\"\r
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\n" ); document.write( "\n" ); document.write( "=...simplify\r
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\n" ); document.write( "\n" ); document.write( "=\"sin%28A%29+cos%281%29+%2Bsin%28A%29+cos%281%29+\"\r
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\n" ); document.write( "\n" ); document.write( "=\"2sin%28A%29+cos%281%29+\"\r
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