document.write( "Question 33857: 2 cos phi multiply csc 2phi = csc phi: prove the identity. \n" ); document.write( "

Algebra.Com's Answer #20282 by sarah_adam(201) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2cos%28pi%29\"$ * $\"cosec%282%2Api%29\"$
\n" ); document.write( " $\"cosec%282%2Api%29\"$ = $\"1%2FSin%282%2Api%29\"$
\n" ); document.write( " $\"2cos%28pi%29\"$ * $\"1%2FSin%282%2Api%29\"$
\n" ); document.write( "but $\"sin%282%2Api%29\"$ = $\"2sin+%28pi%29%2Acos+%28pi%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2cos%28pi%29%2F%282sin+%28pi%29%2Acos+%28pi%29%29\"$
\n" ); document.write( " $\"1%2Fsin+%28pi%29\"$
\n" ); document.write( " $\"cosec+%28pi%29\"$
\n" ); document.write( " \n" ); document.write( "

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