Processing Math: Done
To print higher-resolution math symbols, click the
Hi-Res Fonts for Printing button on the jsMath control panel.
jsMath

Solution 4.2:4d

From Förberedande kurs i matematik 1

(Difference between revisions)
Jump to: navigation, search
m (Robot: Automated text replacement (-[[Bild: +[[Image:))
Current revision (10:37, 9 October 2008) (edit) (undo)
m
 
(2 intermediate revisions not shown.)
Line 1: Line 1:
-
{{NAVCONTENT_START}}
+
If we use the unit circle and mark on the angle <math>\pi</math>, we see immediately that <math>\cos \pi = -1</math> and <math>\sin \pi = 0\,</math>.
-
<center> [[Image:4_2_4d.gif]] </center>
+
 
-
{{NAVCONTENT_STOP}}
+
[[Image:4_2_4_d.gif|center]]
[[Image:4_2_4_d.gif|center]]
 +
 +
Thus,
 +
 +
{{Displayed math||<math>\tan \pi =\frac{\sin \pi }{\cos \pi }=\frac{0}{-1}=0\,\textrm{.}</math>}}

Current revision

If we use the unit circle and mark on the angle , we see immediately that cos=−1 and sin=0.

Thus,

tan=sincos=0−1=0.
Retrieved from "http://wiki.math.se/wikis/2008/bridgecourse1-ImperialCollege/index.php/Solution_4.2:4d"