document.write( "Question 865768: Hi could you please help me with all of question 1 in the following past paper. Although it is intended to be one of the easier questions in the paper, I am having trouble with understanding how to do it. Thank you.\r
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\n" ); document.write( "\n" ); document.write( "http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s10_qp_11.pdf
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Algebra.Com's Answer #521833 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
i) -k
\n" ); document.write( "ii) 1/k
\n" ); document.write( "iii) k/sqrt(1+k^2)
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