document.write( "Question 1089973: Hi! \r
\n" ); document.write( "\n" ); document.write( "How could I solve without using a calculator:
\n" ); document.write( "csc(-9Π/4) = ?\r
\n" ); document.write( "\n" ); document.write( "Thanks!
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Algebra.Com's Answer #704373 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"sin%28x%29\"$ , $\"+cos%28x%29\"$ , $\"+sec%28x%29\"$ , $\"+csc%28x%29\"$ all have a period of $\"2pi\"$ so,
\n" ); document.write( " $\"-%289%2F4%29pi%2B2pi=%28-9%2F4%2B8%2F4%29pi=-pi%2F4\"$ \r
\n" ); document.write( "\n" ); document.write( "So,
\n" ); document.write( " $\"sin%28-%289%2F4%29pi%29=sin%28-pi%2F4%29=-sin%28pi%2F4%29=-sqrt%282%29%2F2\"$
\n" ); document.write( "Since,
\n" ); document.write( " $\"csc%28-pi%2F4%29=1%2Fsin%28-pi%2F4%29\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"csc%28-pi%2F4%29=-2%2Fsqrt%282%29=-sqrt%282%29\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"highlight_green%28csc%28-%289%2F4%29pi%29=-sqrt%282%29%29\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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