{"id":49,"date":"2004-11-30T19:38:31","date_gmt":"2004-11-30T19:38:31","guid":{"rendered":"http:\/\/www.sixthform.info\/maths\/?p=49"},"modified":"2004-11-30T19:38:31","modified_gmt":"2004-11-30T19:38:31","slug":"oh-dear","status":"publish","type":"post","link":"https:\/\/www.sixthform.info\/maths\/?p=49","title":{"rendered":"Oh dear!"},"content":{"rendered":"<p>At the risk of repeating myself, I just have to post some questions a student appears to have been asked to answer by his teacher. I say <i>appears<\/i> because the student was seeking help and may have misunderstood the questions, but I doubt it. They are horrifying.<\/p>\n<p>In the following questions, say which of <\/p>\n<ul>a) 0 &nbsp;&nbsp; b) 1 &nbsp;&nbsp; c) <img src='\/maths\/latexrender\/pictures\/7ed9abff4dafd78d08e616c899412e92.gif' title='\\infty' alt='\\infty' align=absmiddle> &nbsp;&nbsp; (d) indeterminate<\/ul>\n<p>is the correct answer:<\/p>\n<ul>\n<table width=\"70%\">\n<tr>\n<td>1. <img src='\/maths\/latexrender\/pictures\/5d3896ca6d440f5069d5f02195c93e27.gif' title='\\infty + \\infty' alt='\\infty + \\infty' align=absmiddle><\/td>\n<td>5. <img src='\/maths\/latexrender\/pictures\/60300b9844d627412e6eb18bd009a7a9.gif' title='0^\\infty' alt='0^\\infty' align=absmiddle><\/td>\n<td>9. <img src='\/maths\/latexrender\/pictures\/d1d6bd7844054e86a338c4535f5b1984.gif' title='\\infty^\\infty' alt='\\infty^\\infty' align=absmiddle><\/td>\n<td>13. <img src='\/maths\/latexrender\/pictures\/0d4844becdde4e78501b658d9259ba6e.gif' title='1\/\\infty' alt='1\/\\infty' align=absmiddle><\/td>\n<\/tr>\n<tr>\n<td>2. <img src='\/maths\/latexrender\/pictures\/d14dfb0ed27c948268e3b19783b2ec9f.gif' title='\\infty - \\infty' alt='\\infty - \\infty' align=absmiddle><\/td>\n<td>6. <img src='\/maths\/latexrender\/pictures\/dd89e82f74ee827719852c12450658c3.gif' title='1^\\infty' alt='1^\\infty' align=absmiddle><\/td>\n<td>10. <img src='\/maths\/latexrender\/pictures\/834ff93569284cffd94367a81d701270.gif' title='0*\\infty' alt='0*\\infty' align=absmiddle><\/td>\n<td>14. <img src='\/maths\/latexrender\/pictures\/2260380a88f9b8759c0ccb1230f1498e.gif' title='1\/0' alt='1\/0' align=absmiddle><\/td>\n<\/tr>\n<tr>\n<td>3. <img src='\/maths\/latexrender\/pictures\/043351acd0066517d345e083badec383.gif' title='\\infty * \\infty' alt='\\infty * \\infty' align=absmiddle><\/td>\n<td>7. <img src='\/maths\/latexrender\/pictures\/601341530f30ffce8390632db2aa2e4f.gif' title='0^0' alt='0^0' align=absmiddle><\/td>\n<td>11. <img src='\/maths\/latexrender\/pictures\/1a333af8e949ec7fdbf0818fb75bb6d7.gif' title='0\/\\infty' alt='0\/\\infty' align=absmiddle><\/td>\n<td>15. <img src='\/maths\/latexrender\/pictures\/9e75655ad18db4884bbb0fca7b15af0d.gif' title='\\infty * \\infty^{-1}' alt='\\infty * \\infty^{-1}' align=absmiddle><\/td>\n<\/tr>\n<tr>\n<td>4. <img src='\/maths\/latexrender\/pictures\/b559a9c6f1f96aed7cd1f09968f4ab83.gif' title='\\infty \/ \\infty' alt='\\infty \/ \\infty' align=absmiddle><\/td>\n<td>8. <img src='\/maths\/latexrender\/pictures\/1fdb926a81641d680e174ee4a09bc815.gif' title='\\infty^0' alt='\\infty^0' align=absmiddle><\/td>\n<td>12. <img src='\/maths\/latexrender\/pictures\/c71c31f16bf08b2909a61335b4745298.gif' title='\\infty\/0' alt='\\infty\/0' align=absmiddle><\/td>\n<td>16. <img src='\/maths\/latexrender\/pictures\/0e023d885d753c17445d8502db832320.gif' title='\\ln(0)' alt='\\ln(0)' align=absmiddle><\/td>\n<\/tr>\n<\/table>\n<\/ul>\n<p>Yes the questions do purport to be about the normal real number system. Shocking, isn&#8217;t it, that a student could be asked such drivel? \ud83d\ude41<\/p>\n<p>PS Just come across <a href=\"http:\/\/www.kuro5hin.org\/story\/2003\/6\/3\/95744\/71866\" target=\"_blank\">Not Infinity!<\/a> which gives a good explanation of this type of misuse. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>At the risk of repeating myself, I just have to post some questions a student appears to have been asked to answer by his teacher. I say appears because the student was seeking help and may have misunderstood the questions, but I doubt it. They are horrifying. In the following questions, say which of a) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49","post","type-post","status-publish","format-standard","hentry","category-articles"],"_links":{"self":[{"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=\/wp\/v2\/posts\/49","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=49"}],"version-history":[{"count":0,"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=\/wp\/v2\/posts\/49\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=49"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=49"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sixthform.info\/maths\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=49"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}