document.write( "Question 755369: cos(0 + pi)=
\n" ); document.write( "(a) -cos0
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\n" ); document.write( "(c) cos0
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\n" ); document.write( "(e) cos20
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\n" ); document.write( "(All of the 0 have a horizontal line straight through them. I forget what it is called. )
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Algebra.Com's Answer #459640 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
cos(0 + pi)=
\n" ); document.write( "(a) -cos0
\n" ); document.write( "(b) -sin0
\n" ); document.write( "(c) cos0
\n" ); document.write( "(d) sin0
\n" ); document.write( "(e) cos20
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\n" ); document.write( "cos(x+π)=-cosx (ans.(a))
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