<html><head><title></title><style type="text/css"> p { margin: 0 0 0 0; font-family: Arial, sans-serif; font-size:10pt; font-weight: normal; font-style: normal; vertical-align: baseline; color: black; text-decoration: none; } div { border-width:0px; border-style: solid; border-color: red; } body { background-color: #fff; } p img { vertical-align: middle; } p b, li b { font-weight : bold; } p i, li i { font-style : italic; } p u, li u { text-decoration : underline; } p so, li so { text-decoration : line-through; } p sub, p sub { font-size : 70%; vertical-align: sub; } p sup, p sup { font-size : 70%; vertical-align: super; } ul { padding-left : 2em; /* for mozilla list marker box */ margin-left : 0; /* for IE list marker box */ } ol { padding-left : 2em; /* for mozilla list marker box */ margin-right : -0.5em; margin-left : 0; /* for IE list marker box */ } p.Style1, li.Style1 /*Normal*/ { margin-left: 0pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style2, li.Style2 /*Heading 1*/ { margin-left: 0pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 13.26315789473684pt;font-weight: bold; font-style: normal; vertical-align: baseline; } p.Style3, li.Style3 /*Heading 2*/ { margin-left: 0pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 12pt;font-weight: bold; font-style: italic; vertical-align: baseline; } p.Style4, li.Style4 /*Heading 3*/ { margin-left: 0pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 12pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style5, li.Style5 /*Paragraph*/ { margin-left: 0pt; margin-right: 0pt; text-indent: 21pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style6, li.Style6 /*List*/ { margin-left: 14.25pt; margin-right: 0pt; text-indent: -14.25pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style7, li.Style7 /*Indent*/ { margin-left: 108pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style8, li.Style8 /*Title*/ { margin-left: 0pt; margin-right: 0pt; text-align: center; font-family: 'Times New Roman', sans-serif;; font-size: 24pt;font-weight: bold; font-style: normal; vertical-align: baseline; } p.Style9, li.Style9 /*Subtitle*/ { margin-left: 0pt; margin-right: 0pt; text-align: center; font-family: 'Times New Roman', sans-serif;; font-size: 18pt;font-weight: normal; font-style: normal; vertical-align: baseline; } </style></head><body><div id="mc-region-1" style="position: absolute; top: 20.25pt; left: 24pt; width: 320pt; "><a name="" /><p class="Style1"><b>LEKSJON 3 - trigonometri og pytagoras, side 8 - 9 i heftet:</b></p></div><div id="mc-region-2" style="position: absolute; top: 44.25pt; left: 24pt; width: 368.75pt; "><a name="" /><p class="Style1" style="margin-left: 0pt; margin-right: 0pt; text-align: left;">A) Dette er egentlig ikke noe nytt, bare likningsberegning. Første utregning er den eksakte verdien. "deg" er grader og må skrives. pi, som dukker opp, brukes i et annet vinkelmål, andreklassepensum. I første klasse bruker vi bare likhetstegnet for å finne sider og vinkler:</p></div><div id="mc-region-9" style="position: absolute; top: 104.25pt; left: 24pt; width: 225.75pt; "><a name="" /><img border="0" src=".\Leksjon 3 side 8-9_images/IMG0002_1480038.PNG" id="generatedImage9" path=".\Leksjon 3 side 8-9_images/IMG0002_1480038.PNG" style="width: 225.75pt;height: 42.75pt;"></img></div><div id="mc-region-18" style="position: absolute; top: 152.25pt; left: 24pt; width: 263.25pt; "><a name="" /><img border="0" src=".\Leksjon 3 side 8-9_images/IMG0003_1480098.PNG" id="generatedImage18" path=".\Leksjon 3 side 8-9_images/IMG0003_1480098.PNG" style="width: 263.25pt;height: 27.75pt;"></img></div><div id="mc-region-23" style="position: absolute; top: 194.25pt; left: 24pt; width: 403.25pt; "><a name="" /><p class="Style1">MathCad har også omvendt sinus, men den kalles arcus sinus, og skrives asin(). Tilsvarende for cos og tan, naturligvis. Husk hele tida på at du må be om grader, deg, for ikke å få radianer!</p></div><div id="mc-region-28" style="position: absolute; top: 242.25pt; left: 30pt; width: 105pt; "><a name="" /><img border="0" src=".\Leksjon 3 side 8-9_images/IMG0004_1480418.PNG" id="generatedImage28" path=".\Leksjon 3 side 8-9_images/IMG0004_1480418.PNG" style="width: 105pt;height: 27.75pt;"></img></div><div id="mc-region-27" style="position: absolute; top: 278.25pt; left: 24pt; width: 383pt; "><a name="" /><p class="Style1" style="margin-left: 0pt; margin-right: 0pt; text-align: left;">B) Ei pytagoras-likning. Her får vi to løsninger, men i en trekant kan jo ei side bare være positiv.:</p></div><div id="mc-region-29" style="position: absolute; top: 318.75pt; left: 30pt; width: 230.25pt; "><a name="" /><img border="0" src=".\Leksjon 3 side 8-9_images/IMG0005_1480478.PNG" id="generatedImage29" path=".\Leksjon 3 side 8-9_images/IMG0005_1480478.PNG" style="width: 230.25pt;height: 29.25pt;"></img></div><div></div></body></html>